Pilot Parallel Pen Refills Mixable Assorted Colours.

One each of 12 colours.

The art of calligraphy available to all! The Parallel Pen is the first fountain pen that allows thick and thin strokes to be created in complete simplicity. The Parallel pen allows mixable colours: use two Pilot parallel pens each with different colour cartridges and achieve a graduated writing by touching the tips. 

Only for use with Pilot Parallel Pens.