This ceramic edge electric knife sharpener from KitchenIQ features interlocking ceramic wheels that will sharpen both sides of the blades simultaneously and triangular shaped ceramic stones for final edge honing. The knife sharpener also has carbide blades for the setting of the initial edge. The electric knife sharpener is extremely versatile and sharpens Asian, European, as well as American double beveled straight edge knives. Need to sharpen a serrated knife? No problem! There is a manual slot that you can use to sharpener your serrated knives.