Whether you"re slicing meat, dicing vegetables, or carving the Sunday roast, a sharp blade makes cutting effortless. AnySharp restores a super sharp cutting edge to blunt knife blades that have dulled with use. AnySharp works on virtually any knife, including expensive hardened steel knives and even serrated blades (like bread knives and hunting knives), making it unlike any knife sharpener, steel or sharpening stone you"ve ever used. The unique, patented AnySharp uses tungsten carbide technology to extend the life of almost any knife. AnySharp"s unique safety feature is its PowerGrip suction cup base, which attaches securely to any smooth surface or worktop without the need for any tools. Once it"s attached you can sharpen any knife safely single handed - keeping your free hand out of harm"s way! With a totally blunt knife, AnySharp will hone it to a perfect angle, and remove excess metal rapidly the first time you use it. Once sharp, better results are gained by using only light pressure, and only microscopic amounts of metal are shed. All you need to do is just gently draw the blade through the tungsten carbide sharpening edges, 3 or 4 times to restore a super sharp cutting edge. The AnySharp has a long-lasting polymer guiding top that is softer than metal, and therefore won"t damage the metal edge, making it safe for your knives too. Since it is so small and light, AnySharp can be easily tidied away in a drawer, cupboard, or tool box when not needed. Zinc alloy casing.