This Masamoto Yanagi Sashimi knife measures 300mm on the blade and makes a great introduction to Masamoto knives. Masamoto Kasumi knives are made with quality craftsmanship. The blade is made of Hitachi White high carbon cutting edge core (ShiroKo) forging welded with a soft iron. Please note these knives will rust so you need to keep them dry. Traditional Japanese Magnolia wooden handle with water Buffalo Horn bolster. Comes with a saya.