Features MULTIFUNCTIONAL: With the 4-stage sharpener, you can sharpen dull knives easily and professionally. 3-Step Sharpening Process (Coarse, Medium, Fine). Make your kitchen knives sharper. (Note: not suitable for serrated knives) ERGONOMIC DESIGN: Non-slip base and ergonomic handle bring good cooking experience. Suitable for both right-handed and left-handed users. Can be used by both right and left handers. Non-slip base on the bottom of the sharpener prevents it from slipping during use. EASY TO USE:Compact and practical, easy to use. Simply place the blade in the sharpening slot, gently pull it through a few times, and after a few seconds the blade will be dull again (adjust the angle and push the knife down with a certain degree of intensity from the base to the tip, don't push it back and forth). Product Name: Four Stage Knife Sharpener Product material: tungsten steel + diamond + ceramic Product Size: As Shown Colour: black grey Packing list (available after purchasing one product): Knife sharpener * 1 Please understand: 1.Due to the long shipping time, the item may be damaged during shipping. If the item is damaged, please leave us a message through the official website immediately and then post a comment, I will solve the problem for you. 2. Due to manual measurement, the size may have 1-3cm error. 3. Colour may vary by monitor.