Shoreline Marine Eye Straps are great for kayaks, canoes, bimini tops and many other applications. Stainless steel: Constructed from 304 stainless steel. Comes in 5/16” diameter 1-7/8” long with pre-drilled mounting holes. 2-pack. Nylon: Made from heavy-duty nylon to hold down and secure most gear. Comes in 5/16” diameter 1-7/8” long with pre-drilled mounting holes.