Features 4-layer toy: the cat toy consists of 4 layers, in which there are 4 balls of different colors. Rolling the ball will attract the cats attention. Interesting toy: The rotating ball on the horizontal plane stimulates the cats senses and hunting instinct, this will increase their sensitivity and will not cause persecution on the furniture at home. Cats can play alone to eliminate their boredom and depression. Multi cat game: multiple cats can play ball toys together to avoid cat fight caused by only one toy. This will enhance their friendship. Anti slip and firm: the rail edge is polished to be smooth and fine without hurting the claw. The removable multi-layer structure is easy to clean. High quality material: This cat toy is made of tear resistant polypropylene, which can prevent the cats claws from being damaged and stimulate the kittens desire to play. Specifications Note