KONG Sport Soccer Balls (small) are tougher and safer than standard tennis balls. While traditional tennis balls can wear down dogs' teeth, Sport Soccer Balls are crafted with special non-abrasive tennis material that's gentle on both teeth and gums. They also feature extra-thick rubber walls designed to withstand sharp teeth. These toys are tough enough for serious games of fetch and retrieve—and tiny games of soccer. Just give one a throw and watch your dog go crazy for these rugged, soccer-themed bouncy balls. Plus, without an internal squeaker, they're perfect for quieter play while still being tons of fun! Safe, non-abrasive tennis material is gentle on dogs' teeth Reinforced rubber walls are thicker than tennis balls Bouncy, yet firm for hardy games of fetch and retrieve No internal squeaker makes playtime quiet, but just as fun  Makes the perfect football gift for your player-of-the-year pup