100mm x 10mm Zinc-Galvanized Steel Carabiner Snap Link Hook - 3-3/4" x 3/8" 304 Stainless Steel (Not including mountain climbing) that protects against corrosion snap hook Opens and closes smoothly as the spring- loaded gate makes it easy to attach important items to it Versatile binding, rigging & anchoring hardware - quick connect/dis-connect of ropes, chains, straps Backpack, Key Ring, Camping, Hiking, Walking, Travel, Fishing, Indoor / Outdoor Equipment / Gear / Tools Carabiner.