The one on the tan carpet is a "bend-a-bridge" from petco but I made it into a little house, and the one in the substrate is a little wooden hamster one from petsmart that way they can decide if they want to burrow or not. But thanks! We made it out of an old storage cabinet just took all the shelves and the doors off! I have a hatchling Greek tort and a hatchling hermanns tort!