I have done a few searches on here and the webs and cannot seem to find the right answer. I got a great deal on a Leonardo Momento Zero Hawaii rollerball a few months ago, but I did not pay attention to the provided refill. If I recall, it was Schmidt, but I have temporarily misplaced it. I have been looking locally and cannot find a suitable alternative. I am currently using a Pilot V5 that I had to modify to make work. Nothing wants to fit through the coned tip of the pen. :-(
Does anyone else have experience with the rollerballs?