Yoshihiro High Carbon Blue Steel Hongasumi Edo Usuba Japanese Vegetable Chef's Knife Shitan Handle 7.5" (195mm) Grade: Hongasumi / Knife Type: Edo Usuba (Vegetable Chef ) Knife Steel Type: Aoko (Blue Steel #2) High Carbon Steel Blade: Single-Edged/ Blade Length : 7.5" (195mm) Handle Material: Octagonal Shitan Rosewood Handle Hardness Rockwell C scale: 63-64 / Saya Cover : Included