TWSBI Ink Cartridges
Set of 10 TWSBI Black ink cartridges.
These ink cartridges are made to fit the TWSBI SWIPE fountain pen. Our experience has found that they do not fit in other pens, because they are a bit longer and wider than a typical standard international size.
These were made to complement the TWSBI SWIPE fountain pen, and come in a pack of 10.