The rollerball refills contain liquid ink which is smoother and has a fluid, wet feel as opposed to a ballpoint ink. The large-capacity rollerball refills have a ceramic tip in medium, the ink is water-based and quick-drying. Rollerball refills are not interchangeable with ballpoint refills. They are however interchangeable with finewriter refills.
Black Rollerball Ink
Item number 148783
1 Refill in blister card packaging
Approximate Line Width 0.5mm
Lightfast
Blue Rollerball Ink
Item number 148784
1 Refill in blister card packaging
Approximate Line Width 0.5mm
Lightfast