SPECIFICATIONS Material: Synthetic stone Grit: 8000 Dimensions: 9 7/8" x 3 1/8" x 2" ht This whetstone comes mounted on a wooden holder and with a nagura (buffer stone) Use this fine grit stone after sharpening with a coarse and medium grit to remove any scratches on the surface or to simply realign a slightly dull edge for a razor sharp finish. Using a fine grit stone to polish your edge can actually help to make carbon steel knives more rust proof. Start with a generous amount of water over the stone and finish by pressing your blade lightly in the slurry. The particles in the slurry act as a buffer to polish your blade. The nagura or buffer stone that is included with this stone will also help you create a slurry that aids with sharpening and polishing.