YASUTOMO-Metallic Calligraphy Markers. These 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 water-based pigment and are non-toxic. 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 markers: silver, gold and copper.