Main Features:3-STAGE KNIFE SHARPENER -- Our professional knife sharpener is preferred by chefs. It has 3 different sharpening slots. The 2nd diamond sharpening rod repairs and straightens damaged knives before the 1nd slot sharpens to restore its V-shape. Finally, the 3rd slot fine tunes for a clean polish. HIGH QUALITY - HIGH-QUALITY MATERIAL -- The grinder head is composed of ceramics, tungsten steel, diamond and the handle is made of ABS. This knives sharpener adopt the streamline ergonomic design, so it’s more convenience, safer and easier to use compared with the heavy grindstone and sharpening rod. Ergonomic Design -- Designed with removable sharpening slots which is easy for clean up , rectangle non-slip base which keep the knife sharpener fix tightly on the table so it will not easily move while using. EASY TO USE -- Simply place your dull knife in the sharpening slot and gently pull the knife through a few times for fast, effective sharpening.The non-slip cushion at bottom offers more stable base and the ergonomic handle provides a comfortable, easy grip. 100% SATISFACTION GUARANTEE -- This professional knife sharpener we provide lifetime warranty service, please rest assured to buy. If you’re not satisfied with it, please contact us, we will give you a full refund or new replacement. Specification:Item Weight: 6.3 ounces Shipping Weight: 6.3 ounces Product Dimensions: 7.2 x 3.2 x 1.2 inches Package Dimensions: 7.6 x 3.4 x 1.8 inches Type: Replacement Stone Color: Black + Red + Sliver Package:1 X Knife Sharpener How to use this knife sharpener？ If your knife is a little blunt(difficult to cut pork belly), using fine slot to sharpen knife 6-7 times. If your knife is blunt(difficult to cut lean pork), using medium slot to sharpen knife 6-7 times first and then fine slot for 6-7 times. If your knife is very blunt(difficult to cut vegetables), you must sharpen your knife 10-12 times with coarse slot first, then using medium slot and ceramic fine slot to sharpen your knife. NOTE:The sharpener is not able to work with serrated, ceramic blades and scissors. Do not push and pull the knife back and forth, use one direction only. .Do not put too much downward pressure. The knife sharpener incredible 3-slot system for super compatible with sharp edges on all your knives, even the ceramic knives! 100% diamond abrasives, Sharpening technology creates double beveled edges that last longer. fast, effective sharpening! Detachable Sharpener Head, Take the knife sharpener head out by pressing and pulling the small groove. Easy to clean!