The Pilot Iroshizuku Ink Cartridge Ku-Jaku is a peacock green fountain pen ink cartridges. This shade of green calls to the vivid feathers of the richly multicolored peacock. These proprietary...

The Pilot Iroshizuku Ink Cartridge Shin-Ryoku is a forest green fountain pen ink cartridges. A beautiful nod to the unchanging color of a dense evergreen forest in a long winter.These...

The Pilot manufacturers its own inks in Japan. These cartridges come in a pack of 5 and fit in most of the Pilot pens. They are famous throughout the world...