TWSBI Red Ink Cartridges (10 Pack)
A box of 10 TWSBI Red fountain pen ink cartridges. TWSBI Red fountain pen ink cartridges have a standard international opening, but have a bigger girth and longer length than short standard international cartridges, so these will not fit other pens that accept short international cartridges.
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Color Group - Red
Quantity per Pack - 10
Cartridge Type - Proprietary