Classicn&reg; Aviation aluminum carabiner Super Tech Screw. Rock climbing Carabiner Camping, Fishing, Hiking, Traveling and Keychain &Super endurance Aviation aluminium Product materialProduct uses aviation materials, aerospace aluminum high strength, toughness very wellLight weight Product sizeLength 79.8mm* width 46mm weight 28G Easy-to-hold functional shapeCan be operated with one hand strength tested to 12kNIs equal to 1200KG Key ring backpack hanging rock climbing climbing lock catch wild fish, and so on,