Whats the difference between rollerball and ballpoint pens?

Question

I want to buy a MontBlanc pen and it costs HEAPS so I want to make the correct decision.

Answer 1

Rollerball pens are writing instruments which use ball point writing mechanisms with water-based liquid or gelled ink, as opposed to the oil-based viscous inks found in ballpoint pen. The characteristics of these less viscous inks, which tend to saturate more deeply and more widely into paper than other types of ink, give rollerball pens their distinctive writing qualities.