This unique calligraphy pen features a parallel plate nib structure for precise, sharp lines. Available in various nib sizes, each creates a 0.5mm line edge-on. For example, the 1.5mm nib creates lines from 0.5mm to 1.3mm, while the 6.0mm nib creates lines from 0.5mm to 5.7mm. The pen is supplied in a storage tray with one black and one red ink cartridge. It is also compatible with the Pilot CON-40 converter.