The rockD is the carabiner of choice when seeking the highest strength in a standard-sized aluminum frame. The rockD in non-lanyard versions features a flattened shape with an i-beam profile at the bottom and top bends, giving the carabiner a sleek profile, while providing low weight and high strength characteristics. The 3-stage Auto-locking carabiner features a pull-down and twist action — a motion that’s more intuitive and natural for your hand than lifting up and away from your palm.