Filling hay nets is time consuming and often the yard chore most disliked, especially by children. The strings can get caught up on anything and their life span can be pretty short – often breaking or wearing out in a short space of time. James Keyser Products has designed the Hay Ball to put an end to the hay net battle. This ingenious, time-saving stable product is safe, light, durable and entertaining for stabled horses. Hayballs come in three sizes: small, medium and large.