Reddit mentions of Think King Mighty Buggy Hook for Stroller, Wheelchair, Rollator, Walker, 2 Pack

I can vouch for these - with twins I have to use a stroller for almost all of my grocery shopping and I hang the heavy-duty Trader Joe's canvas bags on the hooks. It works really well, but definitely take the groceries off before you take the kid out!

C5-7 quadriplegic. If he's a Para, chances are he's got more function than I... If I can figure it out, surely he can; just get one in his hands and let him play. If not yours, that's what store demo units are for.

Couple aids I use-

A case like this one- it has the little cutout at the bottom so you can add a wrist strap, SO much easier to grab on to quickly/ can just hang my phone off a hook on my chair: https://www.aliexpress.com/item/Fashion-Korean-Style-iFace-Case-For-iPhone-6-6s-5-5s-Cases-Durable-Candy-Color-Shockproof/32691225328.html

An elastic loop on the back: https://www.amazon.com/gp/product/B01MEHPUSR

And as for a hook, it's far easier and cheaper to look for kids' stroller accessories than medical-leaning hardware. Usually medical/ health stuff gets a crazy price markup. Here's the hook I use: https://www.amazon.com/gp/product/B002MXP3SM

And a bonus accessory, the cupholder I use on my chair... can throw the phone in here too when in a hurry: https://www.amazon.com/gp/product/B005G14BIU

Cheers, hope it helps!

This is the one we have (well, an older version)

http://www.amazon.com/Contours-Options-Tandem-Stroller-Velvet/dp/B00M9ZR8XQ/ref=sr_1_1?ie=UTF8&qid=1450470466&sr=8-1

It is perfect for our needs and maybe will the bill for you: many positions for the babies, either in regular seats or car seats, and inline. The newer version appears to be shorter than my old version, which looks nice. Universal car seat adapters. No third seat, but they do sell universal gliding boards that attach at the back. My singleton just turned 3 before the twins were born, and had been forced to start walking on errands early on in my pregnancy because I couldn't lift him into strollers or carts any more. The contours stroller, at least my version, has a toddler handle on either side and he holds onto it and walks. We do 95% of the household errands with myself and the three kids, all under age 4. The basket is generous underneath, but I also ordered these hooks for the handlebars, and I attach a store's hand basket to them when shopping: http://www.amazon.com/dp/B002MXP3SM/ref=sr_rp_1?m=ATVPDKIKX0DER&ie=UTF8&qid=1450470916&sr=sr-1&keywords=Stroller+hooks

Good luck!