Size: 18cm diameter turntable, 12cm overall height, 4cm base height[Super Quiet] The hamster exercise wheel is designed with high quality swivel bearing material, which ensures that your hamster runs without making any noise. Don't worry that spinning hamster wheel hamster wheel will disturb you as this is exactly what you hope for: completely silent.[Perfect Size] The open flying saucer wheel design allows hamsters to not face discomfort due to improper size. The hamsters no longer have to bend their backs while running. This hamster wheel fits dwarf hamsters and Syrian hamsters. Hamsters can run freely on the turntable without restrictions.[Easy to Clean] This hamster exercise wheel is made of PS plastic and comes apart into two pieces. It is easy to take just the saucer portion off. Cleaning it is as easy as washing a plate.[Non-slip Texture] The surface of the hamster wheel has radial stripes, which increases the friction force. When the hamster is running happily, it can effectively prevent the hamster from slipping. There is no seam. This hamster wheel is more secure.[Essential Hamster Cage Accessories] Hamsters are naturally curious and very active. Daily exercise and play are essential to keeping your hamster happy and healthy. A hamster wheel will provide them with plenty of time for exercise.