Corrosion resistant stamped 304 stainless steel. Designed to create an attachment point. An additional ring allows for more tie down options. Great for tying off light loads, securing fenders, cargo net, etc. Bulk. A 3-3/16" B 2-9/16" C 1-5/16" D 1-3/4" E 5/16" F 1-15/16"