Sharpening stone for a particularly efficient way of sharpening and resharpening knives. WÜSTHOF whetstones consist of a high-quality combination of different grit sizes. The stones have two different sides: one with a fine grit and one with a coarser grit. The coarse side is used to grind out unevenness. The fine side is used to sharpen and polish the edge of the knife. In addition to the whetstone, we recommend the whetstone holder tray, which guarantees even more stability. (LxWxH): 15x5x2 cm.