3-Chamber Hamster House - Large Version developed, especially for Syrian Hamsters. The doors, which around 2.7 inches (only 7cm) in diameter, it's a mini maze house for hamster | Syrian Hamster Home - Large size as measured: 12.7 x12.7(Longer Width is 12.7-inch, Short one is 6.8 inch) x 5 inch, please see the Size Image for more information. Reminder: Before purchase please make sure your cage or tanks have enough space to set it down since it’s way bigger than other Hamster Burrow on Amazon | One Entrance for entering & out and 3 Rooms - Since this cave only designed 3-room for hamsters to rest, it's only one door to access, and other spaces under the lid are totally dark which is a benefit for their sleeping in day | Removable Lid & Play Platform - The lid is removable and helps to find your hammy's location easily and do some clean work without disturb your pet's. And the roof of the home is also can be a platform for hamster to play or explore, it's also a nice place for feeding if you setup their bowl & treats on it | High-Quality & Well-Made Craftsmanship - Made from European Imported Birch Plywood, built by the tongue and groove method without nails, and be sanded each corner to smooth. Safe & enjoyable living to keep their well-being