[3 steps] The sharpener integrates coarse grinding, fine grinding and polishing. Diamond pots are used to sharpen dull metal knives and scissors. The tungsten steel box is used for coarse grinding and most household knives can be sharpened in this groove. For ceramic boxes, you can finish them, polish the edges or sharpen the blades. [Easy Operation] Coarse Grinding: Insert the blade vertically into the diamond grinding groove and gently push it back about 5 times. Fine grinding: insert the blade vertically into the tungsten steel tank and gently push it back about 3 times. Polishing: Put the blade upright in the ceramic pot and push it gently about 3 times. Be careful not to repeatedly push and pull during the sharpening process. [Non-slip base] The upgraded non-slip plastic base and handle are more stable and controllable, allowing you to control the sharpener more easily. [Applicable knives] Randomly sharpened knives, knives, fruit knives, scissors, dull knives or new knives. [small sharpening stone] There is a small sharpener in the package, which is convenient to carry, suitable for picnics, outdoor activities and camping. Keep the blade sharp at all times. Delivery quantity: 1 * knife sharpener