These special folded pens are designed for all the ink lovers out there - these tester pens will fit a sample vial, hold a lot of ink and can write monoline - and they are super easy to clean so you can go from one ink to the next quickly. These are now available in the online store (link in bio). I also made a short video showing these nibs in action: https://youtu.be/7Smg8PvToLQ #foldedpens #brassnib #colapen #inktest #fpink #fpn #inkoholic #inktastic #inksample #inkvial (at Toronto, Ontario)