Slim Fountain Pen Ink Cartridge - Blue/Black (six per card)

The slim fountain pen ink cartridge fits the Classic Century Fountain Pen only. Cross Fountain

Pen Cartridges are easy to use and crafted for continued performance so you never miss a note. Open up your pen, remove the expended cartridge, insert a fresh one, and close up your pen to continue writing. Cross makes the nostalgia of using a fountain pen far more enjoyable.

Cross Fountain Pen Ink, in convenient fountain pen cartridges, is formulated to provide both superior writing characteristics and complete chemical compatibility with fine writing instruments.