Made of TC4 titanium, this ALB-20 is a sturdy tool for many uses. The structure of this Fenix ALB-20 tool is ultra-compact, lightweight yet reliable. With the three additional function: a hanging hook, a bottle opener and a straight screwdriver, this multipurpose snap hook is made to be more helpful and easier to carry. TC4 titanium alloy (widely used in aviation, shipbuilding and medical industries) features high tensile strength and toughness, extraordinary corrosion resistance and lightweight.