Stainless Steel Spring Snap Hook 6 Sizes From 1/8"to 1/2" (3/16") made of high quality 304 stainless steel. The 304 stainless steel material features strength and offers good corrosion resistance in bad environment like high temperature, cold weather, and high humidity areas. They have superior rust resistance and the excellent of oxidation resistance, which can ensure long time using. Versatile binding, rigging & anchoring hardware - quick connect/dis-connect of ropes, chains, straps Push gate in to open - auto-close spring gate with interlock tooth (not on 5mm) prevents force open Good ideal for key Package include:1 piece 3/16" spring snap hook