Cat Wheel Exerciser for Indoor Cats is easy to install and provides 4-in-1 functionality as a cat treadmill, cat house, cat shelf, and cat bowl. The silent operation and hidden Tpe bearing wheel ensure safety and prevent injuries. Made of durable pet-friendly wood, the wheel has a large diameter, rounded corners, and a widened base for stability. With a weight capacity of 44lbs, it's suitable for cats and small dogs of all ages.