Representing the middle ground between the traditional gate carabiner and the classic wire gate carabiner, the Petzl Ange S weighs an ultralight 28 grams and provides optimal weight/strength ratio.. . Ideal for mountaineering and multipitch climbing where weight reduction is key. Combines the fluidity of the spring gate with the lightness of the wire gate system. Made from aluminum: ultralight and compact at 28 grams. Petzls MonoFil Keylock ensures smoother opening and closing of the carabiner and a longer lifetime compared to traditional wire gate carabiners. Shape of the nose is designed to optimize clipping and unclipping. Wire gate is protected from lateral rubbing (against rock, etc.). Unique H-profile allows an optimal size and strength-to-weight ratio. Indent on the bottom helps keep the String in place so that the sling is properly positioned on the carabiner. Surfaces that come in contact with the rope and with the anchor are wider, favoring passage of the rope and reducing carabiner wear. Nose of the carabiner has a hole that allows ice, snow, or dirt to be cleared out. Deflector works with the shape of the carabiner to allow proper positioning of the carabiner on its major axis.