Sharpness is always within reach with the Zwilling self-sharpening Four Star knife blocks. The self-sharpening slots boast built-in ceramic honing wheels that automatically sharpen when knives are stored or removed. The remaining slots are for serrated steak knives, with toothed blades that never need sharpening. The slot is equipped with an extra sharpening slot for fine-edge knife collection expansion This set of core knives sets the kitchen up with the absolute essentials. Tackle small-scale tasks with the paring knife, perform in-hand work with the prep knife, and diced onions and slice meat with the chef’s knife. Four Star is the top-selling knife series for Zwilling worldwide. Honed and hand-finished by the most skilled artisans, this celebrated collection is a model of safety, ergonomics, and comfort. Thanks to their seamless transition from bolster to handle, the knives are comfortable to use for long periods. The bolster provides the right balance while acting as a safe finger guard. The knives are made of proprietary special formula steel that has been perfected for over 280 years. Combined with the signature Zwilling ice-hardening technique, these Friodur blades are harder and sharper, they will not stain or chip and they retain their sharpness longer. tailor-made for Four Star knives, this innovative knife block helps you maintain this superior sharpness. precision-forged from a single piece of steel, the Sigmaforge knives have an exceptionally sturdy, balanced, and flexible blade. The set includes: 4" Paring Knife; 5" Serrated Utility Knife; 5.5" Fine Edge Prep Knife; 8" Bread Knife; 8" Chef's Knife; Twin Shears; Self-Sharpening Block