Add a pop of vivid color to your papercraft projects with these dark pens from Marvy Uchida. These pens are perfect to make clean lines and strokes on everything from greeting cards and posters to envelopes and gift tags. Set includes black, brown, dark gray and burgundy.Details: Includes assorted dark colors0.3 mm extra fine tip4 pensQuick drying Smear resistant Water based ink Conforms to ASTM D-4236