Carbide blades Coarse provide quick edge setting capabilities, and the ceramic rods Fine are used for the final edge honingNon-slip base for added stability and controlMaterial: Stainless steel + ceramics+ABS Who doesnt want to work smarter in the kitchen? Dont let them go dull..HighlightsCoarse for dull and damaged knivesFine for polishing the knife and for quick touch-ups for an already sharp knifePatented Edge Grip feature allows sharpening on the edge of the table or countertop prevents the tip of larger knives from dragging over the surface of the counterCompact for easy storage.