Aluminum D Ring Locking Carabiner Portable and versatile Made of superior durable lightweight aircraft aluminum material.Handiness ,strong and practical. Length:3.15; Width:1.65;Diameter: 0.31". Weight:0.7 ounce each. The load bearing of the carabiner is 1763ounce Great to hold items, Idea for hanging on the bag, key rings, bottle, connecting tent and ropes, etc Screw lock and spring clip lock make them safety and convenient.Practical and widely ued for outdoor activity, camping, fishing, hiking, traveling, keychain etc. Not for climbing, rock climbing, ice climbing and other high-altitude activities.