【SAFE AND DURABLE】These durable dog balls are made of high-quality natural rubber material, which is bite-resistant, non-toxic, and flexible. Compared to PVC and TPR, super elastic rubber is more durable, wear-resistant, does not hurt the mouth, and can withstand intense chewing. Let your dog play safely. 【DENTAL CARE】With a grooved non-slip design, it conforms to the dog's teeth and cleans between the teeth like a toothbrush. You can add food or treats in the grooves, which will keep your dog active and massage the gums while they play, helping to clean teeth and prevent tartar and plaque buildup. 【IMPROVE IQ】This dog toy ball is designed to keep your dog mentally and physically stimulated to prevent them from engaging in destructive behavior out of boredom. Simply fill the ball with snacks to easily get your pet's attention, facilitate your pet's training, and help improve IQ. At the same time, slow eating with this ball can reduce your pet's bloating and aid in digestion. 【PERFECT GIFT】This dog toy ball is an ideal gift to promote interaction between dogs and their owners. On the one hand, it serves as a game ball for dogs to play outdoors, satisfying their natural instincts to chase and hunt. On the other hand, it can satisfy the dog's natural need to chew when bored at home and prevent it from destroying shoes and furniture.