Recommended for Sharpening GLOBAL Knives, the MinoSharp 2 Stage Ceramic Sharpener will Maintain a Razor-Sharp Edge on your Knives. Incorporating Three Sharpening Stages (Coarse, Medium and Super Fine) each Wheel is Set to a 15-Degree Angle, allowing you to Quickly and Easily Re-Sharpen the Cutting Edge with Minimal Effort. To Operate, Simply fill the Wheel Compartment with Water to Ensure the Ceramic Wheels remain Clean and do not Overheat during the Sharpening Process. Holding the Knife with your Forefinger on the Knife, Place the Blade Vertically into the Selected Stage and Move the Knife Back and Forth with Slight Pressure 7 or 8 Times. This MinoSharp Plus 3 Stage Sharpener Features Larger Wheels than the Original Two Stage Version and is therefore More Powerful, allowing you to Sharpener your Knives in a Shorter Period.