ITEM NAME:3 Pack Outdoor Carbon Steel D Shape Screw Locking Climbing Carabiners 30KN Description: 30KN/ 6600lbs, high strength Screw locking, safety protection D-Shape, heavy duty CE certified, premium quality Application: rock climbing, hiking, exploring, rappelling, engineering protection, aerial work etc. Specification: Color: Black Materials: Carbon Steel Size: approx. 100 x 55mm/ 3.9 x 2.17 inches (L x W) Gate Opening: 16mm/ 0.63 inch Package Includes: 3 Pieces D Shape Climbing Carabiner KTT0004929019529406.30KN/ 6600lbs, high strength. 3 Pieces D Shape Climbing Carabiner. Application: rock climbing, hiking, exploring, rappelling, engineering protection, aerial work etc. Screw locking, safety protection.