PetSport Blue Tuff Balls Dog Toys 2.5 Inch Durable Tennis Balls 6 Pack

6 total balls. Tuff Balls, the original tennis ball for dogs, now comes in blue. Tuff Balls dog toys have extra-thick natural rubber walls which give added durability and bounce to make games of fetch last even longer. A great cure for boredom and aggressive chewers. Conforms to US and European child toy safety standards (CPSIA, ASTM-F963, EN-71). Non-abrasive polyester felt won't wear down your dog's teeth.