Yoshihiro Hongasumi White Steel Kurouchi Black Forged Yanagi Sushi Sashimi Japanese Knife Rosewood Handle with Nuri Saya Cover (9.5'' (240mm)) KNIFE CAN BE OXIDIZED WITHOUT PROPER CARE* RECOMMEND FOR PROFESSIONAL ONLY* Forged from Japanese White High Carbon Steel #2 with HRC 63. Will become extremely sharp with whetstone sharpening. Features a unique black Forged appearance that provides for an elegant look with optimal performance. Equipped with a handcrafted Rosewood handle with a Ebony wood bolster that makes for a light and well balanced construction, allowing easy maneuverability and seamless use. Lacquered Magnolia wood knife sheath, knife oil, and rust eraser included. Hand wash only and sharpen on quality whetstones. Comes ready to use out of the box. 100% handcrafted in Japan. Not mass produced.