Reddit mentions of Small Animal Pet Playpen /Exercise Pen

this is the exact playpen i used. the dimensions are perfect and each grid sits nicely on the metal bars of the detolf. i used a hammer to pull it apart into a 3-panel piece and a 1-panel piece

if you're not crafty like me and want a simpler lid than building a wood+wire mesh one, this is a super easy option!

You should not use harnesses, they are not safe for guinea pigs. Their backs are very fragile so the force used to pull could be harmful and they could get tangled.

I suggest getting a small enclosure like this (or similar) and having them out of their cage but not just roaming free in the room. This way you don't have to worry about them running under any furniture or behind the couch etc. and they are easier to gather when it's time to go home. I have several of these type of wire pens, and I connect them to make one big area for my guinea pigs to explore. Be warned, these are sometimes not tall enough to prevent jumping, so stay in the room with them while they explore. As for them coming to you- you could train them with positive reinforcement (food) to come when called, but most guinea pigs are wary even if they know you very well.

I love this playpen! Unsure if you can get it in the Netherlands. It is the only playpen my syrian can't climb out of! I liked it so much that I bought another and connect the two fences together to make a huge playpen that I can sit in with my ham :)

Sure!

I buy practically everything on Amazon and these would be my top recommendations:

Hidey Hut - this is large enough to fit two grown gerbils and my first survived the chewing for close to 4 years.

Small Animal Pet Playpen/Exercise Pen - this is just tall enough for the jumpers. I've still had some be able to reach the top but it is a struggle and you'd be able to catch them in time. Really sturdy as well.

Kordon/Oasis (Novalek) SOA80304 Bell Bottle and Hold Guard Small Animal Value Set, 4-Ounce - this is by far my favorite recommendation of the bunch. I cannot tell you how many water bottles were just destroyed and I would come home to an empty bottle and a very wet gerbil. This thing is impenetrable!

Kaytee Hamster Silent Spinner, 6 1/2 inch Exercise Wheel - although I've had to buy a couple of these (they will chew the yellow part holding the bottom part to the wheel) I find that this is the sturdiest of them all. It becomes less silent the more they chew on it and push it around but it's never been loud enough to be considered especially annoying.

Great for cleaning cage and is safe

As far as dust baths go, I've tried several different kinds and find them all to be equivalent.

Would not recommend:

Ware Manufacturing Flying Saucer Exercise Wheel for Small Pet - the quality is fine here but if you are using carefresh, it gets buried and doesn't allow any give for it to spin.

Kaytee Woodland Get-A-Way Medium Hamster House - quality here is also fine and it's pretty thick so it would take a while to get them to chew. Since it is wood, it absorbs liquids. My gerbils would pee on it and it got to the point that it looked moldy and unhealthy so I just threw it out.

Alfie Pet by Petoga Couture - GARI Wood Hut for Small Animals like Dwarf Hamster and Mouse - Size: Large - this is the cutest little home I've ever seen. I had to eventually throw out though because the wood was so thin that the back wall collapsed due to their chewing and would no longer stand up.

Prevue Pet Products Multi-Color Small Pet Playpen 40090 - I think the quality is here too. It's just too short. My gerbils were easily able to escape this.

GreatChoice Water Bottle - chewed through in a week and Same