The Behlen 28300888 Mineral Feeder Hardware Kit includes essential components for assembling or repairing Behlen's 3 or 4 block mineral feeders. This kit features a CAT 0 pin assembly, 5/8" flat washers, a 9" ribbed washer, and a 1/4" round pin, ensuring a secure and long-lasting setup. Designed for durability, these parts help maintain optimal feeder performance in various weather conditions.