Environmentally friendly and safe: made of natural rubber material, moderate hardness, flexibility and bite resistance, do not worry about damaging the dog's gums. Interactive dog toy: this fun dog ball is designed to keep your dog active and entertained. You can play with your dog on the lawn or on the beach, so you and your dog can enjoy the game anytime and anywhere and strengthen the affection between you and your pet. Great for most dogs: diameter 8 cm. It is a toy ball for self-entertainment for large, medium-sized dogs. Even if you are not at home, your dog can play alone and spend boring hours. Stay healthy: you can fill the toy with treats or coat with liver sausage and toothpaste, improve the dog's thinking ability to become thick, reduce depression and anxiety, maintain dental health, reduce destructive behaviour of the dog, protect shoes, socks, bed sheets and couch from dog bites. No batteries required: inside the ball there is a built-in bell, just a nose stroke, and the ball goes It emits a unique giggle sound when the ball rolls and shakes, the sound will make your dog happier.