I'm sorry, I don't know what kind of knives these are. They are very large and heavy, not for home use. In particular, the knife on the left in the first photo, with the black border on the handle, weighs about 400g according to a quick measurement, and it seems to be used for butchering large fish. Since they are unused, there are no visible chips in the blades. There is some rust due to aging, and the packaging box is also dirty, but I would like to use it until the time of delivery. Please understand. I think they will become wonderful tools if you sharpen them. Thank you.