Masterfully combining safety, ergonomic design and comfort, Zwilling's Four Star Knife series revolutionises high quality chef's knives, making this the best selling Zwilling Series worldwide The SIGMAFORGE structure of the knives means they are precision forged from a single piece of no-stain special formula steel, delivering optimum strength and balance, the blade runs entirely through the handle All Zwilling Four Star Knives have undergone a specialised FRIODUR ice-hardening process, ensuring robust durability and flexibility, with a long-lasting sharp blade which will not stain or chip Blades are approximately 55-57 HRC Rockwell for extreme hardness and corrosion-resistance Set includes; 10cm Paring Knife, 13cm Utility Knife, 16cm Slicing Knife, 21cm Sharpening Steel, Kitchen Shears and a Bamboo Block Care Instructions Dishwasher Safe, however hand washing is recommended as high heat may discolour or damage the handle Packaging Type: Gift Box Colour: Black Handle, Material: Knife Handle: Polypropylene Country of Origin: Germany