SUEHIRO RYU MY-4 Whetstone GOKUMYO #300 Japanese Knife Sharpening Stone
Combination of GOKUMYO Series & Sintering whetstone. First, you can sharpen by thick side of whetstone(Sintering), and than finish Sharpening by thin side to finish(GOKUMYO) You can only put few amount of water to use GOKUMYO side, on other side soak in water and wet them enough before sharpening.