Ink cartridge for a fountain pen is placed on a white paper and taken away

ink cartridge fountain pen placed white paper taken away writing stationery refill replace black blue red green purple pink brown color pigment dye liquid smooth flow consistency dry wet smudgeproof faderesistant archival highquality reliable consistent easy quick messfree convenient portable travelfriendly interchangeable compatible standard international manufacturer brand model refillable sustainable ecofriendly