The Cuisine::pro® iD3® 3-Step Sharpener combines precision and convenience in one streamlined tool. This easy-to-use system features a diamond wheel to prep the blade, a tungsten steel blade to sharpen, and a ceramic wheel to polish - delivering a razor-sharp edge and maintaining long-term performance across your entire knife collection. Non-slip rubber feet ensure added stability and safety while sharpening. 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: Maintaining Knife Edge.