Made of the finest steel, Speedball Broad Edge C-Series Flat Calligraphy Nibs are the perfect choice for creating roman and italic lettering, accented line drawings, scrolls, and scripts. When held at an angle, the flat chisel point achieves the thin and thick strokes usually associated with broad edge calligraphy. The nibs are available in a variety of widths and fit any straight or standard pen holder. - Speedball Broad Edge C-Series Flat Calligraphy Nib - C6.