Camper turned into shed/rabbit hutch or a chicken coup. Osb sides with 2x4 frame inside. Right now it has 4 pens- 2 are 3x6 and 2 are 3x3. Front fully open for easy access. Could easily split the larger cages for a total of 6 - 3x3 size. With a little more work could add 2 more pens inside if you don't want the work bench that is above one set. Does get hot if on the sun but has an ac unit that helps keep it cool inside. In a 90 degree day and it parked in shade it would be about 75 inside. It is uninsulated so it could be made better. Tires hold air and pulls well. Lights work. Has stabilizers in the rear. Well put together and can hold people on the wire to. Has storage under one of the pens. All have a gutter system that waste will drop in the front to easily clean out. We went with a different setup and this was only used for a few months.