This is a Yanagiba knife (sashimi knife) made by Masamitsu. The steel used is Gin-san steel (Yasuki Steel Silver Paper), which provides excellent sharpness and is also highly resistant to rust. Please use it at home or at work. Length: 380 mm Blade length: 240 mm (Please note that there may be slight variations due to the handmade nature of the product.) Please purchase with understanding. Please refrain from purchasing if you are overly concerned about minor details. "Gin-san steel" is a traditional stainless steel that has long been used in the world of Japanese knives and is trusted by chefs for its sharpness. Hitachi Metals, which manufactures Yasuki steel such as Shirogami (white steel) and Aogami (blue steel), created Silver Paper steel as a rust-resistant stainless steel. Gin-san steel is a version of this with increased carbon content for higher hardness. It is a long-lasting steel even among stainless steels, making it suitable for knives used for extended periods.