LED Light Ball Bounce-Activated Sound Make Pet Dog Puppy Play Interactive Toy. Specifications: Once the ball is thrown and hits a firm surface, the LED light automatically starts blinking. The water-resistant glow dog ball is excellent for throwing, catching, fetching, bouncing, tossing, biting in the dark. The toy is uneven which makes it bounce in weird directions to train the dog's reaction time. The LED dog ball pet toy is made of food grade TPR material with good smell, which is high elastic, durable, tough and harmless to your dogs. Item Name: Dog Toy Material: Eco-friendly TPR Battery: Built-in Battery (Included) Features: Ball Design, Durable, Chewing Toy, Sound Making Toy, LED Light Diameter: 8cm/3.15" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Dog Toy