UCHIDA-Calligraphy Marker. This opaque paint marker is perfect for calligraphy and lettering on greeting cards, invitations, and certificates. It has a 2mm chisel tip and the glossy oil-based paint can be used on paper, glass, metal, porcelain, wood, and stone. This package contains one paint marker. Color: White. Conforms to ASTM D4236. Imported.