Uning Aluminum D-ring Screw Locking Carabiner Spring Clip Hook Hanging Keychain Buckle for Outdoor Camping Hiking Fishing (Pack of 6) Made of superior durable lightweight aircraft aluminum material, high-strength and wear-resisting. Very easy to use, this locking carabiner clip features a spring loaded gate which allows them to be quickly and securely attached to a wide range of fixing points. Sturdy D shape design, screw to lock the buckle, making them safety and convenient. Used for daily life, attached to the backpack, handbag, hammock, or use as a keyring. Great for outdoor activity, camping, fishing, hiking, traveling, etc. Each size is 8.2 * 4.2cm / 3.2 * 1.7in, compact design and lightweight, make it easy to carry. Notice: Not for climbing use,this carabiner is an ideal for tents, hanging cords, ropes and other items, can be used as a handle or hanger, dozens of uses around the home, RV or boat, very practical and convenient for daily life.