Yoshihiro Kurouchi Blue Steel Edo Usuba Traditional Japanese Vegetable Chopping Chef Knife Rosewood Handle with Nuri Saya (6.5'' (165mm)) Grade : KUROUCHI / Knife Type: Nakiri Usuba (Vegetable) Knife Steel Type: Aoko(Blue Steel #2)High Carbon Steel Blade: Double-Edged (50/50) / Blade Length : 6.5" (165mm) Handle Material: D-Shaped Shitan Rosewood Handle Hardness Rockwell C scale: 62-63 / Saya: Lacquered Nuri Saya Cover Included