This is a quality stainless external star lock washer assortment kit that includes to most popular sizes. This kit contains: 50pcs #4, 50pcs #6, 50pcs #8, 50pcs #10, 50pcs #12, 50pcs 1/4", 50pcs 5/16", 50pcs 3/8", 25pcs 1/2", 1pc Tuff Storage Container