There are so many options in writing instruments and COS offers only the best. Our range of gel rollerball pens offer smooth writing with consistent flow and fast drying ink. Filled with acid-free ink, you can rely on your documents remaining clear and legible for years to come. Choose from our capped gel rollerball pen range to avoid unsightly ink blots in shirt pockets. The cap is also a convenient tool to hang your pen on files and papers, as well as preventing your pens from rolling away. Do you tend to lose the caps of your pens often? If you prefer non-capped pens, choose from our range of retractable gel rollerball pens. Our gel rollerball pens are available in black, blue, red, and green and for even more of a satisfactory experience, opt for the comfort grip. Writing does not have to be a chore!