The DM0708 from Shun is a great combination whetstone if your knife is quite dull. One side of the whetstone offers a 300 grit that will quickly remove material from the edge of your knife. The other side offers a 1000 grit which will smooth out the edge. It also come with a rubber tray for stability when sharpening. Features: ? Whetstone has 300-grit waterstone on one side, 1000-grit waterstone on the other. ? Fine, Japanese waterstones; soak before using. ? Includes rubber tray for stability when sharpening. ? Made in Japan.