Unlike an ordinary stylus, the duet pen can also turn into
an ordinary ink pen, and allow you to write on a nearby pad of paper, all while what you're writing simultaneously appears on the screen of the tablet.
Barriball often coats
ordinary objects such as bags and lamps in
pen and
ink or makes impressions of windows and doors by meticulously tracing their surfaces with pencil on paper and magnifying the incidental details and textures created by every day wear and tear.