Durable, yet soft design to last for years Works for fetch, as a reward, and many other fun games Easy to throw at targets or just for long-distance fun Designed by dog people The ball on a rope is a training aid, not a chew toy. Always supervise your pet when using toys. This newly redesigned Ball on a Rope from Ray Allen is the perfect reward toy for your K9. This dog ball toy features a hollow core combined with a soft rubber surface with knobs that allows for a better grip. The toy comes with a medium 2.5-inch or large 3 inch diameter ball with a T-handle or loop handle.