Sailor Ink Cartridges – Souboku Nano Blue-Black Carbon
Sailor proprietary fountain pen ink cartridges for on-the-go ease. These high-quality nano ink are produced to create an ultra dark, deep line. 12 cartridges in a pack. Also available in Kiwa-Guro (Ultra Black), and Sei Boku (Ultra Blue-Black).
For a more detailed review of this ink (in bottled form), please check out our blog.