Seriously, wow. Birch wood legs for chewing delight, a digging box floor, one mobile (includes two eye holes if want to add another mobile!) for tugging and chewing, and a top to hop up on to survey the domain. Made here in our own workshops, with loving care. Our Toy Elf outdid himself. The rope and the mobile can all be replaced easily if they get too well-loved. All materials safe for small animals.