The clever design of the bobble is uniquely shaped for the most erratic bounce to drive your dog bonkers. This chew toy features a center opening that is ideal for any stick treat. The unique shapes provide the perfect grip from any angle to make the ultimate fetch and retrieve toy. The ridges on the ends of these toys give your dog the feeling that they are chewing through the toy while massaging his gums. Made from our specially formulated ultra tough material, this toy range is assured to keep you dog's tail Waggin.