Premium material - The grinding position in knife sharpener is made of tungsten steel, emery board, high hardness ceramic and other materials, which can be used for a long time. Manual Knife Sharpener in 3 Steps - Sharpen dull knives easily and professionally. 3-step sharpening process (coarse, medium, fine). Keeps your kitchen knives perfectly sharp. Ergonomic Design - Knife sharpener features a comfortable handle for maximum grip, suitable for both right and left handed users. Heavy-duty non-slip rubber base for ultimate stability and safety - anywhere which flat surface in your kitchen will do (no need to find a suitable clean surface, unlike knife sharpeners with suction cup designs). Easy to Use - Place the sharp position of the blade in the Knife Skimmer horizontally and gently pull the knife out several times, after a few seconds, restore your dull knives (lower the knives with some force, pull from its base towards the tip, do not push back and forth). Fits Most Knives - Feel free to sharpen your kitchen knife, santoku knife, fruit knife, dull knife, or new knife. Product description Kitchen Knife Sharpener - Perfectly sharp knives every time. Bring your dull knives back to their best Knife sharpeners make sharpening easier. This ingenious 3-stage knife sharpener will restore your old, dull kitchen knives to their old `` just bought '' sharpness in no time. How to use: Step 1: Place the knife sharpener on the table, one hand holds the non-slip handle and the other holds the knife firmly. Step 2: Place the tail of the knife in the sharpening edge, place the cutting position of the blade in the knife sharpener horizontally. Step 3: Push the knives with some force, from its base to its tip, do not push back and forth. Warning: We do not recommend using the knife sharpener on specialty Japanese knives - this is due to the much narrower blade angles of these knives. May not be suitable for knives previously sharpened by long term use of sharpening stones or steel. Knives sharpened by these methods may have developed a different or uneven blade angle over time.