Purchased several years ago for around 240,000 yen, used a few times, then lightly sharpened with 8000 and 12000 grit stones and haven't used it since. The surface has a mirror finish. Shiro-ichi-ko (White Steel #1), a 1-shaku Mizumoto-hon-yaki Kiritsuke knife. As a characteristic of white steel, it is softer than blue steel, providing a smooth cutting feel and cut surface, and is easy to sharpen. In terms of sharpness alone, it surpasses blue steel, and is a suitable material for yanagiba knives used for sashimi, etc. - Blade Material: Shiro-ichi-ko (White Steel #1) - Handle Material: Octagonal handle, black buffalo horn bolster - Blade Length: 1 shaku - Blade Shape: Kiritsuke The box is not included, but the saya (sheath) will be sent with the knife. Feel free to ask any questions.