Features: 1Interactive Cat Toy: The track and ball of this product are designed to satisfy the nature of cats chasing moving objects and bring unlimited fun. 2Tower Design: Designed with 3 levels of tracks and colorful moving balls to grab the cat's attention, stimulates the cat's senses of hunting instincts. 3Detachable: The tower adopts detachable design, you can inset the table legs into the tower and it can be used as a roller for cats to play. 4Cat Exercise Promotion: The toy can train instincts, nimble in interactive chasing playing, and can increase the amount of cat's exercise. 5Material: Made of environmentally friendly PP material, fine texture, smooth, solid base, stable, wear resistant and durable. Item Type: Three Layer Trackball Toy Material: PP Package Included: 1 x Three&nbspLayer&nbspTrackball&nbspToy