Uses fountain pen ink!

The Calypso roller ball pen from Lyra is the newest trend in roller ball pens -- it uses fountain pen cartridges instead of a roller ball refill! Most roller ball refills are only available in blue or black -- a few ofer red or green -- but with the Lyra Calypso you can use any of the wide range range of colors available in fountain pen ink. The Calypso uses standard fountain pen cartridges or accepts a standard converter to fill from bottled ink. (Converter NOT included.) Point size is .7 mm (Medium). The pen is 5" 12.8 cm) long with the cap on and the barrel diameter is 13/36" (1.05 cm). The pen weighs .4 oz (11 gr). An extra tip/section unit is included with each Lyra Calypso. (list price $5.95 each)