Protect your investment in fine Shun cutlery and keep your edges razor-sharp with the Shun Combination Whetstone. In cases where your knife is quite dull, this Shun Combination Whetstone is the right choice. One side offers 400-grit sharpening that will quickly remove material from the edge, helping you put an new edge on the knife and restore the sharpness. The other side, the 1000-grit stone, will smooth and finish the edge. If you want an even more polished edge, look into our 1000/6000-grit Combination Whetstone. You will need to thoroughly soak this whetstone before sharpening.- Combines coarse and fine whetstones in one: 400 grit on one side, 1000 grit on the other- Use the 400-grit side to sharpen even the dullest knives; use the 1000-grit side to finish and polish the restored edge- Soak stone in water before using; use stone with water only- Includes rubber tray for stability when sharpening- Whetstone dimensions: 186mm x 65mm x 32mm