Description: Auto locking and D Shaped Strength: 40KN/ 8800LBS Materials: Aerospace aluminum Size: approx. 110 x 65mm/ 4.33 x 2.56 inch. Gate Opening: approx. 22mm/ 0.87 inch Widely Application: rock climbing, exploring, rappelling, rescue, engineering protection, aerial work Package Includes: 1 Piece 40KN D Shaped Climbing Carabiner Note: It is necessary to receive adequate training (knowledge of techniques and security measures) before using the tools. Incorrect use or improper maintenance could lead to serious accidents even fatal. Please read carefully or learn enough knowledge before use