Built to Last and Secure: This wooden cat exercise wheel is made from solid wood board with a 0.5"/12 mm thickness and an ultra-narrow 0.2" gap to prevent paw injuries. The widened base and running track deliver added stability. It offers many health advantages to cats, such as mitigating obesity risks and enhancing joint flexibility, ensuring their contentment. Tranquil and Noise Reduction: Equipped with an integrated silent wheel and a bottom noise-reduction, this double noise reduction design creates a quiet and pleasant exercising environment for your pets, while also improving the indoor atmosphere. Suitable for All Cat Sizes: With an external diameter of 35.8 in/910 mm and an internal diameter of 31.5 in/800 mm, this cat wheel accommodates cats of all sizes, supporting feline friends up to 13 lbs. It allows your cats to stretch and roam freely, enabling them to release their energy to the fullest.