Automatic Moving Ball: This smart USB dog toy ball automatically moves, providing endless entertainment and interaction for your pet. It's perfect for puppies who love to play and chew. Interactive Design: The rotating design of this toy ball encourages interactive play between you and your dog, promoting bonding and positive behavioral patterns. Durable Material: Made from durable materials, this toy ball is designed to withstand dogs' energetic chewing and playing habits, ensuring long-lasting use. USB Rechargeable: The toy ball is USB rechargeable, making it convenient for you to keep the fun going. No more constant battery replacements. Rotating Chew Toy: The rotating feature of this chew toy stimulates your dog's chewing reflex, providing a satisfying experience while promoting oral health. Ideal for Puppies: This toy is designed for puppies, making it an excellent addition to their playtime routine. It's a fun and interactive way to keep them engaged and active. Size: about 5cm