HappyDays Cat Running Machine M This product is brand new and unused. The following is from the official website: A scratching post running machine for indoor cats. A running machine for cats. Recommended for indoor cats to relieve lack of exercise and stress. The inside of the wheel is a cardboard scratching post, so they can also scratch (replacement scratching posts are sold separately). It can be fixed so it doesn't rotate when needed, such as at night or when going out. [Individual Size / Weight] W810 x H355 x D490mm / 10600g [Product Size / Weight] Assembled size: W800 x H855 x D385mm [Materials] Base/Outer frame of rotating part: MDF, Main body of rotating part: Paper