Compared to standard flat washers, fender washers have larger outside diameters for covering larger areas or holes when needed.This fender washer assortment kit includes 10 different popular sizes of top quality type 316 stainless steel fender washers. The sizes included are #6 x 5/8", #8 x 3/4", #10 x 3/4", #10 x 1", 1/4" x 1", 1/4" x 1-1/4", 1/4" x 1-1/2", 5/16" x 1-1/4", 5/16" x 1-1/2", 3/8" x 1-1/2". A total of 180 quality type 316 stainless fender washers all neatly stored in a durable (7"x4"x1-1/2") Tuff-Tainer storage box.