Alfie Pet by Petoga Couture - Harvest Living Habitat Set for Mouse, Chinchilla, Rat, Gerbil and Dwarf Hamster - Size: Medium Measures 9.25" in height, 10" width and 13.25" in depth. The extended bathroom measures 7" length, 5.25" wide and 5" high and comes with a with a 2.7oz water bottle. Convenient for ventilation and easy to observe the behavior of animals. Perfectly sized and heavy enough to stay put. Made with pet safe materials that is easy to clean and resistant to odors. Assembly is required