Aluminum Carabiner D Shape 5 Pack, Spring Snap Key Chain Clip Hook Screw Lock Buckle by Big Beat Sports, Free Multi-functional Survival Credit Card Tool as Bonus. Use for attaching water bottle, camping gear and other things to your backpack when camping. Great to hold items, Idea for hanging on the bag, key rings, bottle, connecting tent and ropes, etc. Aluminum 'D' Ring Design Easy On Key Holder Holds Up To 14 Keys, Keep keys handy and secure, Clips To Almost Anything. Color: Blue, Red, Orange, Green, Black, Ring size: 3 x 1.6 inches, thickness: 0.3 inches Material: aluminum alloy - to adopt the polishing process, light weight, durable and wear resistance. Package including: 5 x Aluminum D Shape Locking Ring, 1 x credit card tool