The Hagen Habitrail OVO Home is a complete, all-in-one habitat with an innovative, fun design that creates the perfect environment for hamsters. It is a colorful, transparent cage with accessories that allow you to watch your pet eat, sleep, play and exercise. The cage features a deep base with rounded corners to easily clean, a large retractable roof allowing access to your hamster and his home, air vents preventing drafts yet providing plenty of circulation and escape proof locks in the front and back to make certain your pet remains securely inside the habitat. Includes a cage, food dish, water bottle, comfy hideaway cube, trainer (external exercise wheel), 2 windows and 2 lock connectors. Measures 13.9" x 13.9 ".