Twin Signature 7" Chinese Chef's Knife/Vegetable CleaverTwin Signature knives are precision stamped from a single piece of German steel, resulting in lighter weight knives that do not compromise sharpness. The knives are made of proprietary special formula steel that has been perfected over the years. Combined with Zwilling's signature ice hardening technique, these FRIODUR blades are harder, sharper, they will not stain or chip and they retain their sharpness longer. To ensure an ideal cutting angle, the