Kaweco Calligraphy Fountain Pen Nib Replacement - 2.3 mm - Black Body

Just as good quality as the standard (non-calligraphy/non-italic) tips, which means excellent. It is smooth flowing without too heavy a flow rate given the width, and there is no snagging with the squared off tip. The narrower profile of the chisel tip is a little thick, compared to the tip of a Pilot Plumix; in line with the tendency of German brands of nibs being thicker than Japanese. However, there is still lots of contrast in line thinkness, given that the controlled ink flow rate doesn't lend itself to line "bleed".