Reddit mentions: The best medical examination supplies & models

I don't really have formal lesson plans - more of a very loose outline. It's not a formal class - more like a two-week show-and-tell, featuring whatever bugs I have on-hand. I have a number of species that I keep as pets year-round (mostly arachnids and myriapods) supplemented with whatever insects I am able to catch or purchase in the weeks leading up to the class - and whatever the kids bring in.

I introduce the kids to the major classes/subphyla (arachnids, crustaceans, insects, myriapods, trilobites) and orders within each. For the younger kids, we look at what characteristics identify something as an arthropod and that differentiate between the classes/subphyla. We also look at the differences and similarities between the various insect orders.

We go over the anatomy of the various creatures - more in depth with the older kids, including building those 4D Vision models of beetles, a tarantula, and a scorpion so they can get a better idea of what the internal organs are and how they differ from human organs. I also show the kids the insect x-rays (which also include arachnids and myriapods) and have them compare those to x-rays of vertebrates.

We talk about molting and for a visual demonstration of how the bug can be bigger after it molts, even though it's coming out of a smaller shell, I take two balloons (a small water balloon and a larger party balloon). I stuff the larger balloon inside the water balloon and blow up the larger balloon as much as possible, until the water balloon is tight. (I clamp the neck of the balloon rather than tying it.) I show that to the kids and explain that the exoskeleton can't stretch and is getting too tight for the growing bug. Then, I carefully cut the water balloon (without puncturing the inner balloon) to represent shedding the old skin and it bursts off the other balloon. Finally, I explain that when the bug is newly-molted, the new exoskeleton is still soft and stretchy, so the bug inflates itself with air and body fluids to expand the new exoskeleton before it hardens, and I inflate the balloon further to show them what I mean.

We go over life cycles and metamorphosis and I show them the various life-cycle models for different types of insects.

We touch briefly on social insects and the difference between social and solitary wasps and bees.

For the younger kids, we do a "bug hunt" where I hide a bunch of bug-shaped Easter eggs in the school garden. I let the older kids do this too - but we also go out and hunt for real bugs. I'll give them a scavenger hunt list of things to find, including things like insect eggs, an orb web, a crustacean, a beetle, a member of the heteroptera, an insect larva, an insect nymph, etc.

I bring in an entire room full of live pet bugs as well as an assortment of preserved bugs for the kids to look at. I group them by class and order, so the kids can see at a glance which ones are related to each other.

We spend a couple of days talking about spiders, including the various uses of webbing, different types of webs the spiders make, going out around campus and seeing how many kinds of web we can find (we can usually at least find a cobweb, an orb web, and a funnel web). We talk about venom, the difference between venom and poison, and different methods that venom can be administered (here we broaden out to include other arachnids, myriapods, insects - and even snakes.) The older kids built hydraulic arms so they could understand how hydraulics work when we talked about how spiders use hydraulic pressure to extend their legs, rather than relying solely on muscles like people do. (I use rubber bands and craft sticks to demonstrate to the kids how muscles work in pairs to extend/retract a limb in other animals.)

We also go over various mouth parts and how those are adapted to the foods the insects eat. I use props like a syringe and an orange to demonstrate how heteroptera and mosquitoes have piercing/sucking mouthparts, zig-zag craft scissors and leaves to demonstrate chewing mouthparts, a straw with a paintbrush inside it and a shallow bowl of water to demonstrate the lapping mouthparts of a bee, a long tube connected to a syringe (without the needle - just the plastic part) to demonstrate the long, coiled proboscis of some lepidoptera - and a homemade paper trumpet flower to show how the long proboscis can reach deep inside, where shorter mouthparts might not.

We talk about the different types of wings and make paper insect wings for different orders, including butterflies, moths, beetles (with paper elytra and folded hind wings to show how the wings fold up to fit underneath the elytra), bees/wasps (with tape to represent the hamuli that connect the wings together in flight). We talk about the relationship between wing surface area, body size and weight, how fast the insect has to flap to become airborne, and how fast and skillful the insect is in the air. We also talk about how flies use their halteres to keep themselves oriented in flight.

I tell them about various interactions, too - like the male soldier beetles that harvest cantharidins from blister beetles, to present them as courting gifts to the females, so they can use them to protect their eggs, or plants that - when chewed on by caterpillars - release scents that attract parasitic wasps to come lay eggs on the caterpillars, or ants that tend aphids and scale insects, protecting them from predators in exchange for honeydew, and phoretic mites that hitch a ride on other bugs - and how the phoretic mites can be beneficial to the transporting bugs, like the mites that hitch rides on carrion beetles and then eat the fly eggs and larvae that might otherwise compete with the beetles' larvae for food.

We will talk a little bit about reproductive strategies, including ways the bugs care for or protect their eggs or their young (if they do) and alternatives like laying lots of eggs at once or laying eggs singly and the advantages/disadvantages of each. We'll usually go out and look for examples of these - like the brown widow spiders actively guarding their eggs, the lacewing eggs at the end of those long hairs to protect them from predators, mantis eggs in a protective case, moth eggs just laid en masse, etc.

We usually finish up with a sampling of the defensive strategies that various bugs use, such as running away, hiding, biting or stinging, camouflage, fecal shields, aposematic coloration, and various types of mimicry.

I hope that helps! :-)

The best one is a mirror and a willingness to do lots of self-portraits and anyone else who you can convince to sit for you for a couple of hours.

A good replica skull, preferably one that's been cast from an actual human skull, is useful to have on hand for practice. Nowhere else in the body do the underlying bones have as much impact as what we see on the surface as in the head. (Well, maybe the hands, because of all the sticky-outy-finger bits.) One like this is what I'm talking about, not something you'd get at the Halloween store.

Plaster cast busts are a good source for a real-life model you can work from at any time and that won't move around on you. You miss out on the color, but they're still good for doing value studies. Just look for 'plaster cast bust' on Amazon, they've got tons of them. I used one of the Torino mini head of David ones for this painting the other day.

Steve Huston's lecture on head construction is excellent. It's a full, 3 hour lecture, including time for drawing.

When you have a good grasp of the basic Loomis and/or Huston style of head construction, it's worth digging into Reilly head abstractions; these two videos - part one and part two - break it down pretty well. I've not found a book yet that covers it as well as that; Reilly himself never wrote it down, so all the writing we have on it is based on things his students have written about it, so there's no one, definitive resource. People refer to it as being 'the gesture of the head', but personally I think that's a confusing way to describe it because it's not really the same sort of gesture that we mean when we're talking about gesture drawing of the figure. Personally I think a better way to think of Reilly is that it describes a) the way the parts of the head flow together and relate to one another and b) a more organic way of viewing the planes of the head than an Asaro head, though Asaro heads are pretty nifty!

A few strategies I use to get me past the "oh, I'll just have a bite" thoughts:

1. I think hard about whether that treat is really the best use I can think of for those calories. Even thought SCD isn't a calorie-focused diet, ultimately you are still eating and burning calories. Usually the answer to that question is no--I might want a bite of something not on-diet, but when I think about it, I don't really like it so much that I have to have it.
   
2. I mentally treat anything off-diet during the week as if I were allergic to it. In a way, its not a terribly inaccurate way to think about those foods. Obesity isn't an allergy, but it has similarities--it's an over-reaction of the body's adipose cells to certain foods that, for whatever reason, it can't handle in a healthy way. This also gives me a far more empathetic way of seeing my own weight issues and those of others -- being overweight isn't a necessarily moral failing of self control, any more than sneezing is. Both are just responses that one person has to a stimulus that doesn't impact other people.
   
3. I add it to my running mental list of things I'll wait to indulge in until Saturday. For foods that will keep, I might literally save them until then. For others, it's more of a thing of "oh, mac and cheese, I haven't had that in awhile, I think I'll do that on Saturday!" Then, related to (1), I might think about where the absolute best mac & cheese I can find will be on Saturday, rather than whatever mundane version is in front of me at the moment.
   
4. Occasionally, I'll actually have A BITE. The self control required on this is huge, but when faced with something special that can't be saved for Saturday, this allows me to enjoy something and then move past it. I try to be very present for that bite, and often, I'll enjoy the one taste more than I would've if I'd eaten a whole serving while, say, dividing my attention to conversation or my phone. Realistically, there are very few things that A BITE of will result in an appreciable blood sugar spike, especially during the course of a meal.
   
5. I keep one of these on top of my fridge, and think about whether whatever I'm staring at in there is really worth carrying around some chunk of this with me: https://smile.amazon.com/gp/product/B00J8FJQNA/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Definitely agree don't start with a cage like this with a catheter. Sounding can feel as good or as painful as you want it to be. My GF and I like the feel good side so comfortable sized sounds mixed with vibrations I can orgasm from sounding even without vibrations it's a lot of fun.

Also when you do sounding you want to be as clean as possible unless you enjoy UTIs haha, you can buy sterile lube Amazon Link this is what we use and what kept being recommended in the sounding articles we read before starting our journey, so far no infections. I clean my sounds with soap, water and rubbing alcohol before and after use and of course she washes her hands thoroughly before play.

If you seriously want to try it start with very small sounds and go slow.

Depends on what you like to work on. Butcher paper usually is the cheapest (look for it at a home improvement store by the roll, much cheaper than a sewing supply place). Drawbacks are that it's heavy and brown, which means your lines have to be fairly heavy to see easily.

Another cheaper option is to see if you can find the rolls of paper that doctors offices use to cover the exam tables. It's white and thinner than butcher paper, but still pretty sturdy. Here's a link to buy that type in bulk, the trick is finding this type sold in smaller quantities.

I will also sometimes use non-fusible interfacing during the pattern drafting process, as it drapes more like fabric and is fairly inexpensive. It is also sheer enough that you can put it over an existing pattern and trace it, which is nice when you're working with vintage dry-rotted pattern paper.

Good luck with your project!

I had a couple of seatons over 3/4 years.

​

The gauze advise is good - in particular non-woven gauze as it doesn't catch on the seaton like the woven gauze - I used to buy these ones here. They come in packs of 5 so you can always have some with you. Just fold them in half and sit it in the crack - I found there was no need to attach them as they very rarely fell out unless doing exercise in which case a bit of tape helped.

​

Rotating the seaton round to a 'comfortable' position tended to help too - also useful to realise it moves a lot for when cleaning.

​

Also, the view on seatons where I was treated (UK - NHS) was that they could be left in and that they didn't need to be taken out - I kind of went with that for over a year but eventually asked for it to be removed - I wished I'd asked sooner! You'll get used to how it feels and not even notice it - it'll become a new normal - but when it's done its job get it out, I was amazed at how much better it felt to be rid of it!

A small model won’t have the detailed accuracy that you’re talking about for visualizing individual joints - you’d be better off with a good anatomy app, like the Visible Body Atlas.

That said, there are plenty of small skeleton models for under $20 easily found on Amazon that are still helpful for talking yourself through things while you’re studying. I have this one

TENS 7000. Amazon. $26.

I love it.

I'd also purchase these pads. Amazon. Ebay.

And I like using electrode gel for a better attachment. Amazon.

Like posted before the skulls come from Jack of the Dust. His stuff looks awesome but if you are artistically inclined you can make one yourself for a lot less.

The skull is $49.99 shipped on Amazon.
http://www.amazon.com/Anatomical-Human-3-part-Numbered-Sutures/dp/B007S9YTTY/ref=sr_1_1?ie=UTF8&qid=1457151217&sr=8-1&keywords=pvc+skull

I know he says his skulls are 9 pc but... Look at the pic the Amazon link above and take note of the the seams, sutures and hole in the cheek; then look at http://www.jackofthedust.com.au/product/spring-on-the-hill-tops

They are definitely the same base skull. I'm making one because I can't afford the one I linked.

Hi! Thanks so much for doing this AMA and for TFAB for setting it up. I was wondering if there is any actual difference between Pre-Seed and Therio Gel other than one is labeled to be used for 'all species' (including humans?) and one is labeled just for humans. It is all the same ingredients in the same order by the same company and it used to be called Pre-seed as well. Thanks!

The piece is Ecce Animal by Dutch artist "Diddo". It was a commissioned piece, but he's unable to provide details about its worth or how much cocaine it required because he's under a non-disclosure agreement. Test results indicated it was between 15% and 20% pure.


Imagine you want to replace someone's skull with cocaine. Their skull suddenly disappears and they're left left with a cavity in their head for you to fill up with coke. But before you start pouring you want to know how big the cavity is to know how much it's gonna cost you.

You use this skull model as a reference. It's anatomically accurate, but it doesn't mention its volume, only its weight and that its made out of PVC. You know its weight is 2.1 lb (9.341 N) and the density of the material is [1.3g/cm^3](http://www.wolframalpha.com/input/?i=pvc+density&a=DPClash.MaterialEC.pvc-_PVC.Molded--), so you use that to find its mass, 952.52 g, and its volume, 733 cm^3.

Your friend Wolfram happens to know about Class A drugs and tells you the density of cocaine, 1.216 g/cm^3. You figure you need 891.328 g, which is very specific, but you eventually find a dealer who's okay with it. Your total is $160,439.04.

TLDR $160,439.04

^^Things ^^that ^^skewed ^^the ^^results: ^^I ^^couldn't ^^find ^^info ^^on ^^how ^^much ^^space ^^a ^^skull ^^takes ^^up ^^in ^^your ^^head ^^so ^^I ^^used ^^the ^^plastic ^^model ^^instead. ^^The ^^model ^^has ^^two ^^springs ^^and ^^the ^^weight ^^is ^^its ^^shipping ^^weight, ^^which ^^includes ^^any ^^wrapping ^^it ^^comes ^^with. ^^The ^^density ^^isn't ^^exact ^^since ^^the ^^coke ^^used ^^in ^^the ^^piece ^^was ^^cut ^^with ^^sugars ^^and ^^other ^^stuff. ^^And ^^I ^^used ^^the ^^price ^^/u/FUCKING_HATE_REDDIT ^^because ^^I ^^didn't ^^want ^^to ^^search ^^up ^^on ^^prices.

3dio is a really good microphone but you may be able to sort of make your own. Amazon has silicon ears (https://www.amazon.com/3B-Scientific-N15-1R-Acupuncture/dp/B005DTFORW) and I know there's some on etsy (https://www.etsy.com/listing/198292755/soft-flexible-model-ear-displays-for).

You can buy cheap lapel microphones and use a stereo breakout cable (like this one: https://www.amazon.com/gp/product/B000068O5H) to make the left/right channels. And fit the microphones into the ears connected to a Styrofoam dummy head or whatever. :)

Also this is a good binaural microphone (I have the Ultra Low Noise version), you can use that instead of the lapel mics: https://www.amazon.com/Sound-Professionals--ear-Binaural-Microphone/dp/B00C1TEDCE

Well there was no big pop, nor was there a lot of pus. It was like she was removing one of those human fat replicas from her patient. Not the ickiest surgery video I've seen, but sometimes the icky ones are the best.

Does that mean I can arbitrarily lengthen the URL with random crap and make neat messages?? Let's find out...

>https://smile.amazon.com/dp/B015G0O9TG/whatTheHeckIsGoingOn/withThisKrAzYuRl1235467890?

Edit: yup! Works just as well!

Edit 2: okay so... Max length for a URL is like 2048 characters so...

>https://smile.amazon.com/dp/B015G0O9TG/NEQVE•PORRO•QVISQVAM•EST•QVI•DOLOREM•IPSVM•QVIA•DOLOR•SIT•AMET•CONSECTETVR•ADIPISCI•VELIT/ΜΟΥΣΑΩΝΕΛΙΚΩΝΙΑΔΩΝΑΡΧΩΜΕΘΑΕΙΔΕΙΝΑΙΘΕΛΙΚΩΝΟΣΕΧΟΥΣΙΝΟΡΟΣΜΕΓΑΤΕΖΑΘΕΟΝΤΕΚΑΙΠΕΡΙΚΡΗΝΗΙΟΕΙΔΕΑΠΟΣΣΑΠΑΛΟΙΣΙΝΟΡΧΕΥΝΤΑΙΚΑΙΒΩΜΟΝ/北京在中国北方广州在中国南方

The responses you got were kind of dumb. Just buy a medical replica one off of amazon. I got mine for $40 and the only probably I have with it is that there's a dividing line where they stuck the top of the skull on. Not a big deal and it's easy to ignore when doing studies.

http://www.amazon.com/Medical-Anatomical-Quality-Classic-3-part/dp/B0077B3L42/ref=pd_sim_sbs_indust_1?ie=UTF8&refRID=1JY13K4EYEQHGDS0XBEZ

That one's not bad for the price. Mine doesn't have the pop off top, but is otherwise quite similar. I don't like the whiteness of the teeth either. I couldn't find the exact one I have,

If you're going to shop around for them a bit, just be wary of the ones that are meant for decoration. They barely resemble human skulls and lack all of the finer details. Also, amazon is selling some skulls from a retailer called Nose Desert or Desert Nose. They look okay, until you look at the teeth. They look nothing like real teeth, and look like they just made a cast of a skull and stuck some weirdly shaped pieces of wood in the tooth spots.

Anything from a scientific or medical resource is going to be pretty good, but probably a bit more expensive. I think the one I linked is a good balance of the two, and it avoids all the annoying things, like the medical ones that have numbers or colours all over the different parts of the skull.

I've had a premium soft strap for about 6 months that I pair with a FR210.

The strap is comfortable and machine washable. I've had no issues so far, except for inaccuracy for the first 5 minutes of my run (until I sweat enough to make a good connection to the electrodes). Some gel solved that.

One thing I've found that greatly helps is using EKG gel on the strap every ride. This will last you for years: http://www.amazon.com/Spectra-360-Electrode-Gel-Laboratories/dp/B0093J2GM4/ref=sr_1_2?ie=UTF8&qid=1374794485&sr=8-2&keywords=electro+gel

Some kind of app that filters out HRM readings over a threshold would be really helpful though.

I buy them on Amazon. I've tried Spectra electrode gel and Wavelength MP ultrasound gel. They are great and cheap.

You deserve a hug.

Edit: I just went to delete stuff and realized the camera is the least of my worries. My gf hasn't cared about the flame thrower, suture practice pad, or yeast infection cream that the vet recommended for my dog's ears. I don't think she would care about this.

So glad you're getting relief!

Cefaly has two kinds of pads: sensitive skin and normal. I have extremely sensitive skin, but I can tolerate the normal ones. The adhesive on the normal ones lasts much longer than the sensitive skin ones.

https://www.amazon.com/Spectra-PAR12-02-Parker-Laboratories-Electrode/dp/B00AMGUZ70/ref=sxts_sxwds-bia?keywords=electrode+gel&pd_rd_i=B00AMGUZ70&pd_rd_r=427264b0-0b38-4d64-88a7-4d70c271165f&pd_rd_w=4suD7&pd_rd_wg=ocpeO&pf_rd_p=fa9c8d46-49c0-42f7-8c84-f27f6d48cc96&pf_rd_r=JEWR5SC5XZG631RGYAFK&qid=1555285227&s=gateway

I bought this from Amazon. When the adhesive gets dull I apply very sparingly and it refreshes it.

Ask your doctor if they have samples of the pads. My doctor gives me samples pretty much every visit and I haven't had to buy more in years.

Our front desk has this. I apply it to the parts that touch my skin. Otherwise I don’t seem to get good readings until I am warmed up enough to sweat.

Spectra 360 Electrode Gel - Parker Laboratories - 8.5 oz Tube - (Pack of 3) https://www.amazon.com/dp/B0093J2GWO?ref=yo_pop_ma_swf

Lol yeah I learned this relatively recently.

You can also shorten it to https://amzn.com/B015G0O9TG/

Could you use electrode gel with your Cefaly? I got some to use with my TENS as opposed to just cleaning and renewing the pads with water, and the pads last practically forever. Now I don't put them on my forehead, so I don't know if stickiness is different there, but you don't have to cover the whole pad with gel. It also increases the conduction.

Here is the one I bought, but there are probably other ones out there with better prices/reviews if you look. A little goes a long way.

Amazon... of course! LOL https://www.amazon.com/gp/product/B00J8FJQGW/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1

HANDS!

For the Party in the back Look

Like a Surgeon

For me it's something I actually need

I am assuming you are not using a TENS device for TDCS which it isn't meant for. There are TENS pads that are just carbon rubber that you apply paste on. Go to amazon.com and search for electrode gel or tac gel. Tac gel is an adhesive. I am guessing it will rip the gel layer off of regular pads eventually (?). I think it is meant to be used with carbon rubber pads. Electrode gel coats and rehydrates gel pads making them last longer.

I used to use my TENS unit for stuff quite often. I use the gel electrodes linked below. About every third use I smear a very light coating of electrode gel (not tac gel) over them. They last quite a while and the gel keeps the pads moderately sticky. If you over saturate the electrode it falls apart. You can also buy a bandage and hold them on that way. It requires very little force to keep contact. TENS is quite forgiving so you won't get burned nearly as easily as TDCS. Because of this you can be more sloppy with your electrodes without getting burned.

Gel electrode I used for TENS
http://www.tensproducts.com/PRODUCTS/Electrode-Pads/2x3-5-Tan-Cloth-TENS-Electrode-Pads.html

Electrode paste
https://www.amazon.com/dp/B0093J2GWO/ref=biss_dp_t_asn

carbon rubber electrode example
http://www.tensproducts.com/PRODUCTS/Electrode-Pads/1-75x3-75-Rectangle-Carbon-Pin-TENS-Pads.html

tac gel example
https://www.amazon.com/Tensive-Parker-Labs-Conductive-Adhesive/dp/B0011YY9YM/ref=sr_1_4_s_it?s=hpc&ie=UTF8&qid=1468698705&sr=1-4&keywords=tac+gel

https://www.youtube.com/watch?v=92JIBN9Yz6Q

If he is already in dental school, not taking pre-requisites to be accepted, he might like if you bought him the app for studying for the dental boards (DBM1, should be $44.99) or a dental study model (https://smile.amazon.com/Dental-Study-Teaching-Typodont-Removable/dp/B0181PXTDU/ref=sr_1_5_a_it?ie=UTF8&qid=1481035104&sr=8-5&keywords=dental+study+model)

Go on amazon and buy a pound of fat and think about what 5 of these look like and weigh. Then tell me 5 lbs isn't much.

had this problem - there are potentially two solutions - use some conductive gel (like they use for ultrasounds) on the sensor buttons that insert into the chest strap.

Alternatively, as i had to do recently, buy a new chest strap - the little holes become looser over time so the connection is poor, even with the gel.

Your friendly SA's might have some gel, otherwise available from Amazon - literally enough for 100 ultrasounds or a lifetime at OTF.

https://www.amazon.com/gp/product/B0093J2GM4/ref=ppx_yo_dt_b_asin_title_o00_s01?ie=UTF8&psc=1

Well done op! Fifty may not look like much — you know what helped me ? There is five and ten lb fat molds you can buy from amazon - just go look at one - it’s an insane amount ! I also compare to luggage when I am at the airport - my bags normally weigh 30lbs and I think to myself damn that’s a lot - and you’ve done more!

Keep it up - and keep posting those wins!

Nasco WA07173 Human Body Fat Replica with Display Base, 1 lb. https://www.amazon.com/dp/B00J8FJQGW/ref=cm_sw_r_cp_api_EoOQBbF5JQ35F

I got this for my office to show people implants vs crowns. It's nice and not too expensive.


https://www.amazon.com/Dental-Study-Teaching-Typodont-Removable/dp/B0181PXTDU/ref=sr_1_3_a_it?ie=UTF8&qid=1481288113&sr=8-3&keywords=dental+typodont

I just googled "what does one pound of fat look like" and got a bunch of results. I also found a 1lb fat model for $18 on Amazon.

I bought that scale model of 1lb of fat and I keep it on my desk where I eat and where I study. When I feel like snacking I hold it and use it as a "stress ball" to keep focused.

https://www.amazon.com/Nasco-WA14533-Human-Body-Replica/dp/B00J8FJQNA/ref=sr_1_2?ie=UTF8&qid=1549490963&sr=8-2&keywords=one+pound+of+fat

It's the strap. The monitor is picking up your cadence until you get nice and sweaty. If this bugs you (it bugs me, for sure), you can buy some of this:

http://www.amazon.com/Spectra-360-Electrode-Gel-Laboratories/dp/B0093J2GM4

It's dirt cheap and it fixes the problem. You'll see your heart rate start low and then slowly and steadily climb to 140 with no jumps like you're seeing now.

Conductive electrode gel, same as used for EKG. Our studio and some others I visited have it at reception, or you can get it from Amazon - eg https://www.amazon.com/gp/aw/d/B00AMGUZ70/

I use electrode gel. Once I started using that, I've rarely had any problems with erratic HR readings. It's cheap and the tubes last a long time.

And if you want to keep something on your desk as a reminder...

Amazon's Life Size for $30 with Prime

Amazon 9"

Amazon 33" high

I just lick it. Or you can use electrode gel

https://smile.amazon.com/Flexible-Chiropractic-Spine-Model-Included/dp/B015G0O9TG/ref=mp_s_a_1_2_sspa?keywords=spine+model&qid=1569629233&sprefix=spine&sr=8-2-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzOURQNjNXOUlUS1I4JmVuY3J5cHRlZElkPUEwNzgwODYzMkhDSVVQRzUwWlVQMiZlbmNyeXB0ZWRBZElkPUEwMjU2OTEwMkpQNkEyVExTMEdPUyZ3aWRnZXROYW1lPXNwX3Bob25lX3NlYXJjaF9hdGYmYWN0aW9uPWNsaWNrUmVkaXJlY3QmZG9Ob3RMb2dDbGljaz10cnVl

I use this, what you linked looks to be adhesive not just lubricant. It's gel, it isn't runny and it gets tacky but not sticky.

Here, buy yourself this

Or get one of these. I find it very motivational.

I think you should use common objects as a reference. E.g.: 482.54 ml is about the size of 1.5 cans of coke (maybe). On a side note: here's a replica of 1lbs of human fat http://www.amazon.com/Nasco-WA07173-Human-Body-Replica/dp/B00J8FJQGW

a little bit of this on the back and you’ll never have an issue

I’ve bought this replica and it’s just floating around my house as a reminder:
>Nasco WA07173 Human Body Fat Replica with Display Base, 1 lb. https://www.amazon.com/dp/B00J8FJQGW/ref=cm_sw_r_cp_api_i_MxGwCb0Z7V3ZW

When in doubt => Amazon. https://www.amazon.com/Nasco-WA07173-Human-Body-Replica/dp/B00J8FJQGW/ref=sr_1_3?ie=UTF8&qid=1469559861&sr=8-3&keywords=one+pound+of+fat

Fake ones:
http://www.skullsunlimited.com/col/10/replica-human-skulls.htm


Cheaper, decent quality:
http://www.amazon.com/Medical-Anatomical-Quality-Classic-3-part/dp/B0077B3L42/


Real ones:
http://www.skullsunlimited.com/record_family.php?id=227

I bought a fat model that represents a single pound off of amazon so I could internalize what "just a pound" actually is .
Warning for those sensitive to this kin of stuff : https://www.amazon.com/Nasco-WA07173-Human-Replica-Display/dp/B00J8FJQGW/ref=sr_1_2?ie=UTF8&qid=1499538196&sr=8-2&keywords=1+lb+fat

Losing even one of these from your body is an accomplishment .

Would you donate some money to me to pay my tens and electro gel? Is for my cervicobrachialgia and bruxism pain.

Tens Unit Machine Pulse Massager 24 Massage Modes Rechargeable Muscle Stimulator Device with 6 Large Pads for Pain Relief, Body Building Neck Back Pain Relief
https://www.amazon.com/dp/B079GG3HNX/ref=cm_sw_r_cp_apa_i_MIy0DbNCTVJBD

Spectra par12-02 Parker Laboratories 360 Electrode Gel, 2 Oz. Tube
https://www.amazon.com/dp/B00AMGUZ70/ref=cm_sw_r_cp_apa_i_FKy0DbZ88398W

😣

PayPal.me/Emhernan

I have an eczema patch nothing worked for, until one night it hurt like hell, the only thing near me was the electrode gel for my tens unit. So I tried it just to stop the movement stretching pain so I could sleep. Totally worked. I just use that now. Maybe worth a try, stuffs cheap. $10 for two big tubes