W250ECNB 10-Inch DuoSharp Bench Stone Extra-Fine Coarse No BaseProduct ReviewP Click on the link for more reviewsPPrecision flat, two diamond surfaced sharpener guaranteed to provide consistent, even sharpening every timePTwo sided: Extra-Fine diamond to polish and refine an edge and Coarse diamond to transform a dull edgePSharpens knives faster than conventional stones with DMT's monocrystalline diamond surfacePNo oil is needed-sharpen dry or with waterPDurable construction will provide years of consistent performance and reliable serviceP