Dastar&trade; 7PCS Aluminum Carabiner Screw Lock D-ring Key Chain Clip Hooks Outdoor Buckle for Hiking Climbing Fishing Spring Snap Hook Camping Hooks Material: Light weight aluminum alloy that provide you excellent tools when outdoor camping Quantity: 7pcs/pack. Sturdy and extremely hard body D-nuts buckle design,well-made locking mechanism, better ability to bear load Length: 78mm Diameter: 8mm; Maximum load: 120kg Great for outdoor activity, camping, fishing, hiking, traveling, keychain etc It is NOT recommended to be used in mountaineering, rock climbing, ice climbing and high-altitude games for your safety