Thank you for viewing. I am listing this on Mercari as I don't think I will have the opportunity to use it in the future due to warehouse reorganization. Product Features and Basic Specifications: This product was developed as a medium-grit whetstone for all types of blades. It is made with special abrasive materials, so the quality is permanent. It quickly creates a sharp edge that enhances sharpness and improves work efficiency. Uses: For stainless steel blades, forged blades, and professional kitchen knives. Grit: #400 (for coarse sharpening) Dimensions (mm): 220 x 80 x 70 Sharpening Target: Stainless steel blades, forged blades, and professional kitchen knives. *Please consider the outer film as a buffer material, as it has deteriorated over time. *Please understand that the packaging will be compact to keep the listing price down.