With a new and improved breakaway connection, the Freedom Feeder -Trailer Size makes your horse's hay last a long time as he feeds through the 1 1/2 openings. Longer feeding time simulates natural foraging and optimizes your horse's digestion. And this feeder reduces the amount of waste and saves you money as almost no hay is lost to trampling. This easy-to-fill bag is made of 1/8 (3mm) nylon mesh that has 275 pounds per strand of tensile strength. Measures 24 x 30 and holds 18-20 pounds of hay. This bag should be hung high if your horse wears shoes or is playful.