Koch Industries 245251 Zinc Plated Rigid Round Eye Spring Snap, 5/16-inch Eye Diameter, 1 Each Eye Diameter 5/16-inch, Length 2-3/8-inch, Material Diameter 0.24-inch Maximum Load of 130 lbs Designed for use with rope, chain, strap, animal leashes and other home, farm and recreational applications like camping, fishing, hiking, traveling With a smooth operating spring loaded gate, you can attach to a wide range of fixing points quickly and securely like keychains or flag poles Can attach to a wide range of fixing points quickly and securely