This is a Japanese-made chopper knife (cleaver). - It has a substantial weight and is suitable for chopping through hard ingredients such as fish bones and poultry bones. - Recommended for outdoor use. - The blade is made of high-carbon steel and will rust. After use, wash with hot (or cold) water and carefully wipe the blade with a dry cloth. This will keep it clean and beautiful for a long time. Blade Type: Double-edged Blade Length: 170mm Blade Width: 95mm (tip) Blade Material: Stainless steel Thickness: 3.8mm Weight: Approximately 560g Handle Material: Brown plywood (full tang) Origin: Seki City, Japan ● This is a new, unused, and beautiful product.