1. The bottom suction cup design can be fixed on a flat or vertical surface, and can be quickly installed like a windmill under the drive of the cat's claw 2. There are catnip balls and luminous balls built into the transparent shells on both sides, which can attract cats' attention from sight and smell and improve their interest in play. 3. The convex point in the middle can be used for daily rubbing of the cat's face or fur or teeth grinding 4. If it is combined with cat toothpaste or food attractant, it can have a very good cleaning effect.