At 31kN (almost 7000lbs) the Force D is one of the strongest aluminum carabiners in the world. The Force D is an affordable, rock solid design, that has proven itself in the field around the globe. Whether it's used in recreational climbing, military applications, or rescue scenarios, this carabiner is designed to get the job done. Dimensions: 4.2" x 2.15" Gate opening: .78" Weight: 2.3oz (65g) 3 Sigma test: Major axis 31 kN Minor axis - 9kN Gate open - 9kN