The 4-Pack Little Giant 50-Pound Plastic Universal Livestock Block Holder and Feeder doubles as a grain or supplement feeder. The unique design of this feeder allows for feeding 50-pound 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. This block holder and feeder features two ways to mount including a universal secure hook-over mounting on wire livestock panel or a 2-by-wide board. The feeder is made of tough, impact-resistant, high-density polyethylene that protects against warpage, stress cracks, and UV damage. The 4-Pack Little Giant 50-Pound Plastic Universal Livestock Block Holder and Feeder measures 12.63 inches long by 14.25 inches wide by 9.69 inches high and holds one 50-pound salt/supplement block or 6.5 quarts.