Large wooden Hamster Home - Large Version developed, especially for Syrian Hamsters. The doors, which around 2.7 inches(ca. 7 cm) in diameter, it's big enough for a Syrian hamster to slip through comfortably. Measurement: 16.9x11.2x4.3inch(ca. 42.9x28.4x10.9cm). Reminder: Before purchase please make sure your cage or tanks have enough space to set it down since it’s way bigger than other mazes on Amazon | Multi-Chamber Hamster Maze - Comes with 2 entrances and 6 rooms, all rooms and roof platform easy to access like an underground tunnel & maze system by connected opening, highly mimic hamsters wild burrow to stimulate their instinct to hide & explore | Multi-functional Activity Room - Designed 3 Big rooms & 3 Small rooms, can be used individually by hammy's wishes, like sleeping in, hiding away, storing food, napping, digging bedding or exploring escape route, just like in wild. Stimulating Hamster to keep active & Enriching their pastime in the night. Also, provide a dark surrounding in the day for hamsters to take a premium sleep | Removable Lid - The removable roof of the house lets you easy to find where your furry friends sleep without disturbing your hamster or check the storeroom to see has any perishable foods and remove them as needed | 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