This is a kitchen knife from Tsukiji Sugimoto in Tokyo. The blade material and heat treatment are highly regarded. Approximate measurements are as follows: Blade length: 180mm from the heel Spine thickness: 1.9mm at the base of the blade Blade material: Steel Handle: Rosewood Please check the photos for the current condition. Although unused, it has been stored for a long time. Please consider this before purchasing if you are sensitive to such things. Shipped with simple packaging. Thank you.