This Interactive Rubber Ball can easily attract pets' attention, help pets improve their intelligence, and facilitate dog training. Perfect for feeding and interacting with your dog. You can add food or snacks to the ditch, which can keep them busy for hours. The soft and unique surface relief can effectively help clean teeth and keep gums healthy. The product is made of tough rubber, with good elasticity, bite resistance, non-toxic, non-abrasive, and safe for your dog's teeth to grind and clean.