The SMC Kinetic Series has been specifically designed to meet all your personal protection requirements. Built from the ground up this dual-action carabiner gives you the best of the best in carabiner functionality. The Kinetic Series features a key lock nose, 0.98" gate opening, and screw or Auto-Locking gates. Weighing in at 2.8 oz. (Screw Gate) and 3.2 oz. (Twist Gate) you don't have to sacrifice strength for weight when working at height all day long.