Pilot Parallel Pen 2-Color Calligraphy Pen Set, with Black and Red Ink Cartridges, 6.0mm Nib (90053) Pen set contains 6.0mm Parallel Pen (blue cap and barrel), 2 ink cartridges (black and red) Each pen comes with two cartridges, a pipette for cleaning, nib cleaner and instruction booklet Two different ink colors can flow fro the same nib for a beautiful graduated effect Unique "Parallel Plate" Nib Technology allows you to produce clearer sharper writing than with any other pen Refillable - Pilot calligraphy refill model #77313 and additional colors sold separately