(Please also consider purchasing with other products. We can offer a discount.) This is a Deba knife and a sashimi knife made by Masamitsu. The steel used is Gin-san steel (Yasugi steel silver paper), which provides excellent sharpness and is also highly resistant to rust. We have put them together as a set, making them available at a great price. Please use them at home or at work. ● Deba knife: 11,900 yen Length: 290 mm Thickness: 7 mm Blade length: 150 mm Weight: Approximately 237 grams ● Sashimi knife: 12,700 yen Length: 340 mm Blade length: 210 mm (Please note that there may be slight variations due to the handmade nature of the knives.) 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 been widely used in the world of Japanese knives for a long time, and it is a steel material trusted by chefs even in Japanese knives that require sharpness. Hitachi Metals, which manufactures Yasugi steel such as white steel and blue steel, created silver paper steel as a rust-resistant stainless steel, and Gin-san steel is made by increasing the carbon content and increasing the hardness. It is a steel material that retains its sharpness for a long time even among stainless steels, so it is a knife suitable for those who use it for long hours.