ZWILLING J.A. Henckels 30750-300 Twin Signature Knife Block Set, Black/Stainless Steel Includes 4" Parer; 5" Serrated Utility; 8" Chef; Kitchen Shears; 9" Sharpening Steel; 10-Slot Birchwood Block Manufactured in Germany Special formula high carbon NO STAIN steel One-piece precision-stamped blade for a lighter weight knife without sacrificing strength Ice-hardened FRIODUR blade starts sharper stays sharper longer and has superior resilience Ergonomic polymer handle is perfectly bonded to full tang Traditional three-rivet design is embedded with ZWILLING J.A. Henckels logo 57 Rockwell Hardness = excellent edge retention