The product received corresponds perfectly to that sold: - Stone of two grains (fine and very fine) - Good stone sizes - Good quality. Only black points: - No way to know quickly that color corresponds to what fineness of grain. Only experience shows. And these subtleties not obvious to guess. - Records in Japanese or Chinese. In short not very explicit. - The media does not fully take into stone
By cons namely: this is not an easy sharpening system uap. Getting a good edge requires some experience.
