Overall Length: 29 centimeters Blade Length: 16 centimeters Blade Width: 4.5 centimeters This is a Kuro-uchi kitchen knife, inheriting the tradition of Tosa swordsmiths. It carries on a history of hundreds of years, and still maintains the hand-forging process. Kuro-uchi is said to be resistant to rust. The sharpness is excellent and also lasts for a very long time. The sharpness does not diminish with sharpening, allowing for long-term use. I believe it will last a lifetime if used with care. I've been using this type of knife for many years. There's a quality you won't understand until you use it. Please be aware that it cannot cut ice.