Dear customer, Thank you for choosing our products. If there is any problem with our products, please contact us through the order information. We will be happy to serve you and solve it for you as soon as possible within 12 hours, thank you! Hamster wheel adopts the design of double ball bearings, which is smooth and silent, so that your little hamster can enjoy the happy time of running. Even if the hamster spins fast on the running wheel, brings you a quiet night. The wide hamster running track allows hamsters to relax their backs while running, enjoy happy running time, and help them exercise themselves and maintain their physical and mental health Hamster running wheel is one of the essential hamster accessories in the hamster cage. Your little hamster will like this hamster toy very much. It needs to run wildly on it every day to break the logistics and enrich their night, keep it They are healthy and happy. You can also remove the base and install the running wheel on the wire of the hamster cage. You can flexibly choose the base or install it on the hamster cage. hamster running wheel is made of high-quality acrylic and plastic materials. The color of the candy matches your hamster cage. The transparent base is chewy, and the solid base achieves reliable standing and support.