TWSBI Cartridges Red 10 Pack

TWSBI cartridges for the TWSBI Swipe, Standard International Fitting with a greater ink capacity than standard short international cartridges.

• 10 Pack of cartridges
• Red ink
• Standard International fitting
• Oversize cartridge

These may not fit all standard international pens due to the larger size and are designed for the TWSBI swipe. 

We can only guarantee compatibility with TWSBI Swipe.