The chewing ball is made of non-toxic natural rubber, which has good elasticity, bite resistance and puncture resistance. Used to clean teeth and prevent plaque and tartar buildup. This toy ball is a toothbrush-like rim. Not only can it help your pet brush their teeth, but also can be used as a feeding tool. This dog toy can easily attract pets' attention, improve their intelligence and facilitate training dogs. There is a hole in the center of the dog teeth cleaning ball which can be inserted with string or filled with pet snacks. The dog is very easy to accept and there will be more surprises during the game. Contains 2 dog balls, green and blue, with a unique mint scent. Diameter: 2.4 inch / 6 cm.