Natural and environmentally friendly: This dog chew ball is made of TPR material, environmentally friendly, safe, harmless, sturdy, indestructible and tough. The dog toy can withstand the strong bite of a big dog, and it can ensure the safety of your pet when playing with the toy. Robust and durable: This interactive dog treat ball is specially designed for large, medium and small dogs. The dog chew ball has passed various aggressive bite tests of large and medium dogs, such as German Shepherd and Alaska. The test results of this product are in good condition. Healthy chew for your petWhy do dogs like chewing? Chewing is a natural behavior of dogs. We don't need to stop it, just guide it properly. The durable dog toy is made of TPR, nontoxic and bite resistant extremely, Ensure your dog can play and chew it safely, and it is easy to clean. Food distribution function: You can place pet dog food in the food dispensing toy. When your pet is fiddle, pushing and playing with the dog pet food treat feeder, the hole in the ball will drop dog food or snacks, so that the dog can gain food rewards through its own efforts and increase your pets'IQ. Teeth grinding function: The chew tooth cleaning ball is specially designed for grinding teeth. Long, elastic thorns can clean the dog's teeth and massage the gums, reduce the formation of dental plaque and prevent gum disease. Size: length 4.3, width 4.2, height 4.3