Air
UNI-BALL Air capped rollerball uses a unique air mechanism that is very receptive to drawing and sketching.
The pen glides across the page with very little resistance.
Line width varies with hand pressure to give subtle changes.
Because of the air mechanism, you can use the pen at any angle, which will suit many sketchers who draw quickly and in the standing position.
Ink is UNI Super Ink which is pigmented, archival and water resistant.
