Manna Pro Simply Flax Supplement for Horses is an excellent, all-natural ground flaxseed supplement which supports horses' immune system. It also effectively promotes healthier skin conditions and shinier coats on horses. This supplement delivers the numerous nutritional benefits of Omega-3 fatty acids in a 100% pure, additive-free formula. Convenient and efficient, this product eliminates the hassle and mess of boiling and grinding your own seeds. Does not require daily maintenance or cleanup. Also features an outstanding, guaranteed shelf life of 12 months. Sold in a 8 lb pail.