Cross Edge: Slide into Action Twisting and Clicking, Not Necessary. Playing, Necessary. For those that want to have a little fun while getting down to business, this capless rollerball pen combines performance and practicality with play-ability. Just slide it open, unleash your thoughts, and then snap it shut. Slide open. Snap shut. Slide open. Snap shut. You won't be able to resist the temptation to play with the new Cross Edge pens.