Features Motion Sensor Activations: The toy activates with a simple touch, encouraging your cat's natural huntings instincts, and then intelligently choose the routes to avoidSturdy As a Dog Boredom and Entertainment Toy, the self play dog ball has multi modes to fit different dogs to play with. Better work on carpets, tile/wooden/marble floors Construction: Made from premium, pet-safe materials designed to withstand playful paws. Physical & Mental Stimulations: Encourage your cat's natural hunting-instincts and provide both physical exercise and mental stimulations, reducing boredom and destructive behavior. Reduces anxiety and boredom: Perfect for keeping your dog busy when you are away, helping to prevent destructive behavior and restlessness. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Size: 9.5X8cm/8.5*7.5CM Package List: 1x Rolling Dog Toy