This is a deba knife made by Haruyoshi. This is a Japanese knife forged from Yasugi white steel. Please use it at home or for work. Length: 330 mm Spine thickness: 10 mm Blade length: 180 mm A deba knife is a type of Japanese knife for fish, characterized by its thick, sturdy, and durable blade. It is used for scaling relatively large fish, preparing bones, splitting the back, and cutting through fish and bones (chopping). Please purchase after your understanding. Those who are sensitive should refrain from purchasing.