Made from investment cast 316 stainless steel these corrosion resistant diamond eye plates are designed to create an attachment point. Great for tying off light loads inside or outside your boat. Use to secure fenders, cargo net, etc. Installs with four 1/4" FH fasteners (not included). A 3-1/2" B 1/2" C 7/8" D 2-5/8" E 1-3/8" F 2-3/16"