High tensile strength spring steel wire. Bright zinc plating. Versatile usage. Can be used in farm, truck, auto and home. Replaces cotter pin. Assortment Contains: Contains 50 of 00009, 30 of 00010, 30 of 00012, 20 of 00013, 10 of 00014, 30 of 00015 & 10 of 00019.