CHROMA Aluminum Screw Lock Carabiner Keychain by CoolTec - Chroma Matte Finish - for Outdoors, Camping, Biking, Hiking, Traveling, Biking, Purse, Backpack. (6 PACK Green) 1. Made from lightweight and durable aluminum. It features a spring loaded clip with screwlock. 2. Compact design does not get in the way. Approx. 2.75" x 1.5" 3. More than just a key chain. It is a great tool for hikers, campers, photographers, or anyone that carries a bag. Confidently hang stuff off your bag or briefcase. WARNING: Not for climbing or safety equipment. Package includes: 6pcs - Green