Honed and hand-finished by accomplished artisans, this celebrated knife is the model of safety, durability and comfort. The seamless transition from bolster to handle provides remarkable balance and acts as a finger guard. Along with ergonomic molded handle, experience fatigue-free cutting with each use. The knives are made of proprietary special formula steel that has been perfected for over 280 years. Combinded 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.Precision-forged from a single piece of steel, the Sigmaforge knives have an exceptionally sturdy, balanced and flexible blade.