Traditional Japanese Hand Forging: Professional Japanese chef's knife inherits the traditional Japanese hand forging method, combined with advanced technology and materials. Persistence through 45 days of hand forging to complete a kitchen chef knife High Quality Cooking Chef Knives: 2.5 mm Kiritsuke chef knife is made of 3 layers of top grade 9CR18MOV high carbon steel with precision quenching and vacuum cold nitrogen treatment. The hardness is up to 58-60 HRC. Improved rust resistance and toughness Solid Rosewood Knife Handle: Octagonal handle of the Japanese high carbon knife is made of precious summer sour wood from Southeast Asia. Minimizes wrist tension and gives you the flexibility to comfortably adjust the cutting angle Perfect Cooking Cookware Choice: Japanese knives combine high-end materials and first-class craftsmanship; perfect for home cooks and professional chefs alike. And with professional box packaging is perfect for family and friends at special days High Carbon Knives Important: MITSUMOTO SAKARI products pass strict quality audits Traditional Japanese Hand Forging: Professional Japanese chef's knife inherits the traditional Japanese hand forging method, combined with advanced technology and materials. Persistence through 45 days of hand forging to complete a kitchen chef's knife High Quality Cooking Chef Knives: 2.5 mm Kiritsuke chef knife is made of 3 layers of top grade 9CR18MOV high carbon steel with precision quenching and vacuum cold nitrogen treatment. The hardness is up to 58-60 HRC. Improved rust resistance and toughness Solid Rosewood Knife Handle: Octagonal handle of the Japanese high carbon knife is made of precious summer sour wood from Southeast Asia. Minimizes wrist tension and gives you the flexibility to comfortably adjust the cutting angle Perfect Cooking Cookware Choice: Japanese knives combine high-end materials and first-class craftsmanship; perfect for home cooks and professional chefs alike. And with professional box packaging is perfect for family and friends at special days