VEVOR Cat Exercise Running WheelComfort and Safe Cat Exercise Wheel This cat exercise wheel is crafted from solid wood, ensuring its durability. With a spacious 12. 6 inch wide base, it provides your cat a stable area to exercise. The unique 0. 2" 6 mm gap design ensures safety, allowing your feline companion to run freely on the wheel. Featuring a silent wheel and noise reducing holes, our cat wheel can reduce noise by 10 20%, creating a peaceful and enjoyable exercise environment