The EDELRID HMS Bulletproof Screw ECO is an innovative and robust carabiner with a steel insert at the apex. This prevents premature wear and burrs or sharp edges, and makes it a lighter alternative to a steel carabiner for top-roping. It features a Keylock closure system on the upper carabiner for optimal handling when clipping and unclipping, and an H-profile construction for the best possible use of material and minimal weight. The carabiner is certified to EN 12275 and EN 362 standards, and is made from aluminium and steel. It is available as either a screwgate or Triple Lock model.