The wooden dolphin house is made of 100% natural fir tree, non-toxic and harmless, natural and environmentally friendly, strong, moisture-resistant and healthy. The effect thermal insulation is good and it is safer for pets. The removable upper wooden roof is easy to clean. If small animals stay inside and dont come out, just open the roof and take them out. An entrance door and 2 designer side windows are bright and airy. It is convenient for the hamster to obey its outdoor environment. The rat house can be a spacious and comfortable refuge for your little furry one. Let them maintain a healthy and active environment. This flat top hamster house is suitable for small hamsters and can be placed in hamster cages or larger sorting boxes. Delivery quantity: one piece.