1/3/5 pcs International Standard Fountain Pen Ink Converter 0.34cm/0.26cm Caliber (5Pcs 0.26cm)

1/3/5 pcs International standard fountain pen ink converter 0.34cm/0.26cm caliber. Accurate ink flow without Klecksen and smudge. Fill your fountain pen quickly and easily. It can refillable cartridge and allows you to fill your cartridge pen with bottled ink. This handy converter allows you to use bottled ink in your fountain pen instead of an ink cartridge. Just fill the converter from the ink bottle using the pump mechanism and then insert the converter into your pen as though it was an ink cartridge.