The AnySharp Knife Sharpener revives dull, blunt knives with great results every time. The clever suctioned bottom means you can secure it to any work surface to keep both hands free with a stable place to sharpen your knives. The unique AnySharp knife sharpener uses tungsten carbide technology to extend the life of your knives. 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'll have ever used. Whether you're slicing meat, dicing vegetables or carving the Sunday Roast, a sharp blade makes cutting effortless. Not suitable for fine-toothed knives.