When your horse eats hay or the ball, the stability ball will swing to entertain your horse and make the stability time more interesting Material: Hay ball made of rubber with a lattice shape design, , soft, skin-friendly, stretchy, and . And the ropes are and strong, waterproof More Fun: Horse toy ball easy to fill the ball with hay and fresh grass, and work great as a slow feeder, which can keep the horses fun and allow them to eat a little bit at a time like in the natural state Keep Exercising: Hay play ball provides a unique way to keep your horse or goat in lock-up all day long and encourages natural foraging behavior Size 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: 14cm Material: colour: blue+red Package 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.