Super Pet CritterTrail Outhouse Expand your pets living space to create the ultimate pet habitat with this functional accessory Dual purpose design makes for a safe nesting box or a dust bath for your pet Flip-up lid provides for easy access and truble free cleaning Features Super Protect Antimocrobial Technology to provide a healthier, cleaner accessory for your pet Universally connectable so it easily attaches to all CritterTrail, Habitrail, and S.A.M. syatems