12000 grit Shiageto from Naniwa Finishing stone to polish and sharpen the bevel further. Soft abrasive with a smooth cutting action. Naniwa Super Stones Naniwa has introduced a 1cm shorter thinner sharpening stone so to differentiate the original 2cm thick Advance Superstone whetstones we have added the word "Double-Thick". This series of sharpening stones from Naniwa are made from the same high quality grit as the Naniwa PRO series but made from a softer resin with slightly less grit for those on a budget. These stones are made from tightly packed resin bonded grit and have the following advantages: No pre soaking required - simply splash some water on the surface and start sharpening Faster cutting than regular stones Longer lasting - about twice as long as regular stones Much less mess than “cement” type stones The Naniwa Super Stone series ranges from 220 to 12000 grit and are all made via the same resin bonded process to give a consistent “feel” through the sharpening process N.B. These stones do not have a plastic bases like our previous ranges. You can purchase a sturdy rubber base here Dimensions: 210mm (L) x 70mm (W) x 20mm (H) - stone dimension