Partstock(TM) 6-Pack 3 Inch Aluminum Alloy D Ring Shape Buckle, Super-handy Spring Snap Key Chain Clip Hook Screw Lock Buckle.(not for climbing) Size: Approx. 3 Inch (L) x 1.8 Inch (W) High hardness aluminum alloy. Adopt polishing process, screw locking carabiner key ring, key-chain, snap, hook, and for any outdoor equipment gear. Please note that the item not intended for climbing or safety equipment. Great to hold items, Idea for hanging on the bag, key rings, bottle, connecting tent and ropes, etc. Not recommended for climbing, rock climbing, ice climbing and other high-altitude activities. Durable metal construction convenient, practical and wide application. Use them to attach tools or equipment. Package including: 6PCS Aluminum Alloy D Shaped Locking Keyring