mountaineering/caving/tree climbing/fire/rescue/industry The Rota Screw Gate Carabiner with a pulley which largely reduces friction with the rope and can change the direction of the force exerted on the rope, well suited for use in hauling. Hot-forged 7075 aluminum alloy enhances strength Unique T-shape nose boosts overall strength Wide and round shape allows the carabiner to work well with the Munter hitch Keylock “no-hook” nose prevents snagging when clipping and unclipping Tensile test has been conducted on each carabiner before packing Rope diameter: 7-13 mm Certifications: CE0194 EN12275 EN362 EN12278 Maximum Strength: 2 kN*2=4 kN Dimensions: 112 x 73 mm Efficiency: 85% Gate Opening: 24mm Strength: Major/Open/Minor: 22 / 8 / 7 kN Weight: 121g