LATEST IMPROVED DESIGN: This is the latest design. We improved the structure to make it stronger and lighter. The bonus stainless wire keychain allows you to easily hook your keys on the caribeener clips LIGHTWEIGHT & STRONG: STURME carabeeners clip are made of superior durable lightweight aircraft aluminum alloy. So it is elegant durable strong and light. You don’t have to worry about it will rust MULTIFUNCTIONAL: STURME D Ring Carabiner clips are very suitable for outdoor hiking, fishing, camping, traveling etc. The lock system will keep you safe. Use it to key chain clip, attach the sports bottle, backpack, ropes of camping tent, hiking pole DIMENSION: Caribeaner Length: 2” (51mm); Width: 1.06” (27mm); Diameter: 0.18” (4.5mm); Weight: 0.16 ounce. WARNING: caribeener clips NOT applicable for climbing, swing, hammock, punching bag AFTER-SALES: We provide one year after-sales service for our products. You could relate us if you have problem, we will solve the problem for you