This universal block holder doubles as a grain or supplement feeder. Unique design allows for feeding 50-lb. salt, mineral, or protein blocks, as well as loose minerals and feed for cattle, horses, goats, sheep, alpacas, and llamas. High sides prevent animals from knocking the block out of the holder and reduce their ability to gnaw on the corners, reducing waste and saving money. Universal secure hook-over mounting on wire livestock panel or 2-by-wide board. Made of tough, impact-resistant, high-density polyethylene which protects against warpage, stress cracks, and UV damage. Measures 12.63 inch long by 14.25 inch wide by 9.69 inch high, holds one 50-lb. salt/supplement block or 6.5 quarts.