Kaweco G2 capless rollerball refills are the same size as the classic Parker style rollerball refill, so they will fit all pens that use that refill. They fit the all the Kaweco classic sport range and the Steel and Brass ones. For the Perkeo range of rollerball see these.
The G2 ballpoint and rollerball refills can be swapped to convert a pen from a rollerball into a ballpoint.
1 refill per pack.
