This 5.5-inch serrated prep knife is a reliable, all-around knife, perfect for all kitchen tasks. The serrated edge makes it ideal for cutting through hard exterior, soft interior foods such as bread and salami. Four Star knives are made of proprietary special formula steel that has been perfected for almost 300 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. Precision forged from a single piece of steel, the SIGMAFORGE knives have an exceptionally sturdy, balanced, and flexible blade. Made from special formula high carbon stainless steel SIGMAFORGE - Single piece, forged knife Ice-hardened FRIODUR blade stays sharper, longer Precision-honed blade and laser-controlled edge for superior sharpness Ergonomic, polypropylene handle 57 Rockwell Hardness = excellent edge retention Dishwasher safe, handwashing recommended Made in Germany