Rollerball and Ballpoint

Rollerball pen ink refills and ballpoint pen ink refills may look identical, especially when compared to fountain pen ink and fountain pen India ink refills. The exception is the gel rollerball ion pen inks, which are colored. Even ballpoint pen refill cartridges look different from each other. In general, ballpoint ink pens have a broader tip. Rollerball ink pens have a smaller tip.