This Suisin Inox Western Style Sujihiki measures 270mm on the blade. Suisin Inox are made by a combination of INOX carbon steel with an addition of Molybdenum and Chromium. The result are knives that are both rust resistant and can hold an exceptionally sharp edge. We really like these knives and they make a great introduction to Japanese knives for those just beginning to explore them. The knives are hand finished which gives them extreme sharpness out of the box.