Check the listing for details. Natural Japanese Tsushima sharpening stone whetstone. Condition: New. Listed at 82.10 USD. Natural "Ocean Blue" Tsushima sharpening honing water stone whetstone: - size: L - 8.0"x2.7"x1.0" (200x70x25mm), 2.2 lb (1050g) +/- 5% (regular size) XXL - 8.0"x3.5"x1.0" (200x90x25mm), 2.8 lb (1250g) +/- 5% (extra wide) 3XL - 9.0"x4.0"x1.4" (230x100x35mm) +- 5%; 5.2 lb (2.4 kg) +- 5% (professional size) - version: (H): hard version (4-4.5/5 hardness) (B): B grade (can include non-toxic inclusions/chips/hairline cracks or other cosmetic imperfections) e.g., L denotes a regular version of size L, L(H) - hard version of size L, L(B) - B grade of size L - grit range: #9K-12K (approximate; it is a natural stone, gritness can vary; it also varies with applied pressure and slurry density)- purpose: final stage sharpening and honing (polishing/edge mirroring) of knives, razors, chisels, planes, and other blades- use: used with water only (a small amount is sufficient), no pre-soaking required; do not use with oil- origin: quarried from a now closed underwater mine near South Tsushima Island, Japan- hardness: medium (3-3.5/5, regular version) or hard (4-4.5/5, H version); hardness can vary from stone to stone and surface to surface- cutting speed: medium/slow to medium- feedback: excellent- layer: very dense, uniform consistency of fine grit- dish resistance: high- picture: generic (your stone will look different but similar)- ships from: Tampa, FL by a priority mail (2-3 days to most U.S. destinations) This is a good finishing stone with a long lifetime, the stock is limited.