Yoshihiro Mizu Yaki Hongasumi Ginsanko High Carbon Stain Resistant Steel Yanagi Sushi Sashimi Japanese Knife Shitan Handle (11.8 IN) Grade: Hongasumi Mizu Yaki Ginsanko / Knife Type: Yanagi (Sushi Sashimi Chef ) Knife Steel Type: Ginsan-ko High Carbon Stain Resistant Steel Blade: Single-Edged / Blade Length: Available in 11.8" (300mm) BOLSTER: Shitan Bolster / Handle Material: Octagonal Shitan Rosewood Hardness Rockwell C scale: 62-63 / Saya Cover : Included