Location, location, location! On a sharpening stone real estate is everything! Our stones are generously sized at an approximately 3 inches x 8 inches. They dwarf many other stones, and are more expensive for us to ship, but we believe that an enjoyable sharpening experience is an important part of knife ownership. This is the stone to get if you are looking for a mirror finish, and surgical sharp edge. This is manufactured by Imanishi, the shame company that makes the 8k Kitiyama stone.