These carbon steel, single-edge blades are manufactured in the USA. They are precision ground with a third angle which increases sharpness dramatically. These more delicate blades tend to not catch, or pick up stray shreds of cane, but they do wear faster than the double facet type.
These are fine for use in shaping cane, cutting cork, and trimming finished reeds.
Each blade is protected in a stiff paper shell. Go for the convenience and save by ordering this box of 100.