The wheel has sisal on The within and out but while the cushioned pads is often taken out, the carpet can’t. The wheel provides a twenty-inch diameter, so is absolutely only suitable for tiny cats and kittens, and it will hold a utmost cat bodyweight of 15 pounds. • https://tumbling-mat75172.losblogos.com/26544753/5-essential-elements-for-cat-treadmill-wheel