The Pilot calligraphy pen Parallel Pen has a unique nib consisting of two parallel metal blades, which allows it to spread the ink more evenly and more sharply than regular calligraphy nibs. Additionally, it is more durable than a felt-tip pen. With its special, blendable inks, you can create amazing color transitions and shade blends by touching the nibs of two Pilot Parallel pens together.
This pen comes with one black and one red ink cartridge, as well as a cleaning converter.
Note: The technique of touching the nibs of two Parallel pens together to blend the inks should only be used with Pilot's special ink cartridges specifically designed for the Parallel Pen. Mixing other inks, including regular Pilot ink cartridges, can cause clogging.
Video source: Pilot