Motion sensor technology detects your cat's activity and initiates unpredictable rolling movements and engaging sounds to keep them entertained. Durable grinding teeth design provides soothing relief for teething and promotes healthy chewing habits. Selfactivating undulator feature starts movement automatically to encourage exercise and satisfy natural instincts. Made from petsafe materials for worry, longlasting durability. Practical use scenarios Independent play during the day: Place the toy on the floor to spark spontaneous movement and sounds when your cat approaches, helping combat boredom and promote activity. Teething relief for kittens: Let the grinding teeth design work to soothe gums while encouraging safe chewing behavior. Exercise and enrichment for energetic cats: The selfactivating undulator prompts physical activity and taps into natural instincts, providing mental and physical stimulation.