When your horse eats hay or the ball, the stability ball will swing to entertain your horse and make the stability time more interestingDurable Material: Hay ball made of rubber with a lattice shape design, , soft, skin-friendly, stretchy, and durable. And the ropes are durable and strong, waterproofMore Fun: Horse toy ball easy to fill the ball with hay and grass, and work great as a slow feeder, which can keep the fun and allow them to eat a little bit at a time like in the natural stateKeep Exercising: Hay play ball provides a unique way to keep your horse or goat in lock-up all day long and encourages natural foraging behaviorSize About: The diameter of Hay Feeder is approximately 5.5 inches. Please check the size before you buy it. This horse feeder ball is just a toy to keep horse or goat busy and relieve stress. Do not use it as a feeder.size: 14cmMaterial: colour: blue+redPackage Contents:2 x Goat Feeder Ball Toy(The color of the lanyard is random, don't accept the specified color.)Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.