Yoshihiro High Carbon White Steel Kasumi Funayuki Deba Japanese Sushi Fillet Knife (6in, 150mm) Grade: Kasumi / Knife Type: Funayuki Deba ( Fish Fillet ) Knife Steel Type: Shiroko (White Steel#2) High Carbon Steel Blade: Single-Edged / Blade Length: 6" (150mm) BOLSTER: Water Buffalo Horn (BOLSTER COLOR -VARIES) / Handle Material: Octagonal-Shaped Magnolia Hardness Rockwell C scale: 62-63 / Saya Cover : Included