With regular cutting and slicing against hard blocks and boards, the blades of your knives become dull and less efficient. To keep them in top condition, a few strokes alongside a sharpening steel is key, and this one, made of ceramic, is ideal. Harder than steel, the ceramic tool restores life to overused blades. Any minute filings (from the knives' blades) that collect on the ceramic can be washed away with soap and water.