Your smaller pets such as ferrets and chinchillas need room to play and exercise. Marshall Pet Products understand that you little friends need more room and have created the Folding Mansion. Designed to easily set up and store, it won’t even require tools! The Folding Mansion comes installed with four wheels to make moving between rooms simple. The bottom tray can be locked into place to prevent any movement, but can easily be taken out for cleaning. $153. BUY.