Review on 🐹 DIY Hamster Tunnel and Playground Module Kit - 94 Pcs, Tube House & Platform Exercise Set for Mice, Hamsters, and Small Pets by Richard Cheng

This add-on set perfectly complements the hoses and connectors included in the base cage + set. A few tips: * Use flat pieces to build spaces on top of the cage. Don't try to build separate cubic rooms, you won't have enough flat pieces.* Brackets are included to connect the walls to the cages. They're doing their thing.* Note the rings that connect to the cage and adjoining rooms, the animals like to nibble on them. Apparently they give you some extra rings for this purpose. (You can't gnaw pipes between pipes.) * A wall has to "slide" to function as a door, so you don't have brackets on all 4 sides, but on 2 or 3 sides. * Make sure you build so you can easily separate it into groups, you need to spray it at least once a week. All in all it's pretty good. I wish they had a different tee, corner piece, hemisphere and wall connector. Also, animals are good at moving their poop through pipes and I want to turn the tees into toilet pieces so they can stack poop in the T ends. But for the price, you can't beat it compared to the competition.