[High Quality Material] The hamster wheel is made of eco-friendly board. The eco-friendly board is a healthy PVC board made of wood as the raw material. It has the characteristics of waterproof, mothproof, anti-aging , high hardness, not easy to crack and no paint. [Silent Running Wheel] The hamster running wheel bearing is equipped with a silent slider, which is ultra-quiet, non-shaking, efficient and smooth. Even if your pet walks around at night, it will not disturb anyone, which will enrich his night without getting bored. [The Best Hamster Pet Toy] You can put hamster wheels on or outside the cage. Pets always need a toy to play with and will have a great time. It can help hamsters to entertain and walk around, stay healthy and keep hamsters happy and healthy. [Easy to Install and Clean] Our small diameter hamster sports wheels are designed with detachable waves, which can be easily wiped with a cloth, allowing your small pets to live more comfortably in a silent racing wheel.