This rubber is not good at all. Despite its design, it does not rub out as good
as the Boxer/seed rubber. So if you want quality rubber dont go for these. I ahd
trouble rubbing with these on a 0.5 2b lead.
Hey when i got this jetpens didnt put the refills in for me..and it kinda took
me ages to realise how to refills it..so be careful.
However, once i get it refilled in and the ink is flowing, it writes pretty
smooth and the size of this is fine (check the small cirecle stick that comes
with it). I think this is way better than the petit..