Size6.3"*4.73"4.33" (L*W*H).The doors, which around 2.36 inches(ca. 6 cm) in diameter, it's big enough for a Syrian hamster to slip through comfortably. It's suitable for small animals weighing less than 250g, such as hamsters,gerbils,mice,chipmunks,chinchillas, parrot,birds,etc.Natural and Safe]Made of natural defatted pine wood, built by the tongue and groove method without nails, which is a safe chew toy for pets.Waterproof SurfaceBoth inside and outside are treated with safety varnish and waterproof, which can prevent the hamster's urine from penetrating the board, prolong the service life of the wooden house, and become very easy to clean.Multifunctional HideoutIt can provide small pets with a place to hide, play, and sleep. Bottomless design to allow hamsters to dig beding, stimulate their instinct to hide and explore.Removable LidThe roof is plain and waterproof. A kettle or bowl can be placed on the platform to increase the use of space in the cage and satisfy the fun of hamster climbing or playing. The roof of the house can be opened to facilitate the observation and interaction with the little pets.