@dasgrueneblatt @Natasha_Jay during the 80ies and 90ies it did not work with pencils of Faber, Städtler and Rotring. But with the plastic ballpen writers of BIG.
(off course you can tilt the pen in an angle or fling the cassette around the pen with centrifugal force, then you can use smaller pens too.)
@adorfer That's possible. I don't think I had such expensive brands of pencils as a child/teenager :masto_lol:
@Natasha_Jay