Super Pet's CritterTrail Treat Zone is the complete home with an interactive treat dispenser. Simply fill the top globe of the Treat Zone with treats, press the top release button, hear the bell ring and watch the treat spiral down to your waiting furry friend (treats not included). This complete habitat includes a Comfort Wheel, food dish, water bottle, two easy access large front doors and Treat Zone. The deep base eliminates scattered food, litter and messes and is easy to clean.