The rockD is the carabiner of choice when seeking the highest strength in a standard-sized aluminum frame. The rockD carabiner serves the broadest range of specialized uses. 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 Autocking 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. We identified several surfaces where ropes and lanyards can be held up by the edges of the gate and sleeve, which can lead to dangerous cross-loading. The auto-lock gate sleeve is designed with beveled edges to minimize this risk and provide a smoother interior for interaction with the materials connected to the carabiner.