Get ready to keep your ideas flowing with the FPO Pen Ink Cartridges! Writing has never been easier-or more fun-with this five-pack of blue ink cartridges. Get set up for maximum productivity with a cartridge that is designed for smooth writing and bold, vivid lines. Whether you’re busy scribbling down notes in class or adding the finishing touches to a journal entry, you can rely on the FPO Pen Ink Cartridges to help you express yourself. Let’s get writing!