A really excellent disposable lettering or calligraphy pen in three widths. Waterproof, lightfast black pigment ink. Square-cut nib is precisely cut compared with cheaper alternatives and produces a clean, dark line. Note: Pilot have changed the barrel design of these pens very slightly. The nib, ink and barrel size/shape remain the same, its just the printing on the barrel that has changed - see image above for example. Mixed stock may be supplied.