Large snap clip hook Heavy duty and durable Can be attached to safety climbing harness lanyard Ideal for fall arrest, scaffold, rock climbing, high work, floor escape, exploring, rappelling, mountaineering and so on The product has got CE certification Specification: Material: Aluminum alloy Opening Gate: Approx. 2.36 inch/6 cm Round Hole Diameter: Approx. 0.83 inch/2.1 cm Size (L x W): Approx. 8.66 x 4.53 inch/22 x 11.5 cm Strength: 25KN Package Includes: 1 Piece Climbing Snap Hook(2 Pack) 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.