An all-time favorite that's a sure winner with any dog. These tennis balls deliver bounce and roll action and stand up to overtime play like little champs! These mini tennis balls are perfect for your small breed dog! The little size fits perfectly in your dog's mouth! They are great for a game of fetch and will fit into the most common automatic ball launchers. These balls DO NOT have a squeaker inside. Soft fabric won't hurt your dog's teeth. - 1.5" in diameter