[Rubber Material : the product is made by extra-tough rubber good elasticity bite-resistant and nontoxicnon-abrasivesafe for your sweet dog grinding and cleaning their teeth Tooth Clean: tooth-shaped design can effectively help clean their teeth and keep their gums healthy. More Entertainment:which can be stuffed with pet snack. Your pets will accept this toy easily and get more surprise while playing. Best Dog Toys for Boredom. "Improving Intelligence and IQ Training: This dog toy can easyly attract your pets attention help pets intelligence improving and is convenient to train dogs."]