The Cuisine::pro® iD3® BLACK SAMURAI Sakai 7-Piece knife block, with its exquisite craftsmanship and cutting-edge technology, delivers high-performance and a modern touch to your kitchen. The blade is made from Japanese stainless steel 420J2, measured at 53 on the Rockwell hardness scale. Handle construction: One-piece seamless stainless steel (asymmetric hollow, MicroDot®). Hand wash with mild soap and warm water, then rinse and dry immediately. Do not place in the dishwasher. Backed by the Cuisine::pro lifetime warranty. Recommended uses: Everyday Prep Across Fruit, Vegetables, Meat.