Four Star 5.5-inch Serrated Prep KnifeThis 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 ZWILLINGs signature ice hardening technique, these FRIODUR blades are harder, sharper, they will not stain or chip, and