Why do you need this rubber dog ball? 1. Reduce dog's destructive behavior, effectively help to clean teeth, massage gums and tongue. 2. Hard and strong rubber for long lasting workout use. 3. Interactive educational toy, exercise the muscles of the animal. 4. The material is safe, washable and durable. More fun with this durable dog ball. 1. Our pet training balls are specially designed for dogs to play and train, and interact with humans. Provides hours of fun and exercise for your dog. 2. When you are on a walk with your dog, the ball that your dog can chase is a fantastic idea. 3. Allowing your dog to play with it not only promotes healthy exercise that benefits your dog's overall health, but also helps eliminate negative and destructive behaviors. Features: Material: High quality non-toxic natural rubber. Colour: red. Dimensions: Large 7cm rubber ball, 160g weight, suitable for dogs 5-7.5kg. Rubber ball medium size 6 cm, weight 125 g, suitable for dogs from 3.5 to 5 kg. Small