Dog Tennis Balls By TOPAZ & ABBIE, Dog Balls, Non Toxic & Non Abrasive Dog Tennis Ball Perfect for Fetch & Training Balls 3 Pack DOG TENNIS BALLS - Perfect for games of fetch NON-ABRASIVE FABRIC - Will not wear down your dog's teeth HIGH QUALITY DOG TOYS - Made of rugged synthetic felt YELLOW &amp; BLUE - Both colors are easily recognize by dogs NON-TOXIC &amp; DURABLE DOG BALLS