Snaps Fastener's, 10 of each Piece, Extended Length 1/4"- Cap 3/8" Eyelet, Socket, Stud Snaps are Standard Size Line 24, Cap is 5/8" Inch Across The Top with a 1/4" Inch Post Stainless Steel Materials, Eyelet is 3/8" Post Nickel Brass Materials Top Quality Fasteners, Marine Grade Heavy-duty construction assures a firm grip that will remain secure through years of use. When purchasing snaps be sure to look for the Fasnap Brand or DOT Brand name stamped into the socket. This will assure you are purchasing a quality product. Anything else may corrode, pull apart easily or break. We Ship Internationally! Northwest Tarp Canvas Check Out Our Quality Weather Resistant Tarps! Have a Nice Day!