The Deluxe My First Home for Critters provides great living space for unusual critters such as sugar gliders, degus, chipmunks, flying squirrels, and, of course, pet rats! Comes complete with 2 Comfort Shelves, 2 Safety Ramps, Food Dish, and Comfort Wheel. The deep plastic base prevents bedding from scattering while the white wire top makes for easy viewing and superb ventilation. "Pet Safe" narrow 1/2" spaced wire bars prevent small animal pets from escaping.