Black YASUTOMOCalligraphy Chisel Tip Markers. These Chisel tipped Calligraphy markers contain a generous ink supply for multiple projects and feature sharp durable nibs for excellent results, are odor free, contain no xylene, have waterbased pigment, are nontoxic and acid free. For elegant writing on invitations, announcements, greeting cards, signs, awards and certificates on light or dark paper: also writes on most glossy papers. Ink is water resistant when dry and conforms to ASTM D4236. This package contains three black inked markers: 2.0 (fine), 3.5 (medium) and 5.0 (wide).