HKM-7368893 Large Cat Exercise Wheel for Indoor Use - 43.3" Wooden Treadmill with Noise Reduction and Safety FeaturesIntroducing the HKM 7368893 Large Cat Exercise Wheel, designed for indoor use and perfect for keeping your feline friends active and healthy. This 43. 3 inch wooden treadmill combines durability and safety, ensuring a secure environment for your pets while they exercise. Constructed from solid wood with a thickness of 0. 5 inches (12 mm), the cat exercise wheel features an ultra narrow 0. 2 inch gap that helps prevent paw injuries. With a widened base