Industrial detailing delivers gripping performance and winning style. The best-in-class C-Series nimble design lets you shift easily from Rollerball to Ballpoint, while the fully loaded Fountain Pen offers unexpected ease and effortless handling . Turbo-charged performance and cutting edge design.  These capped rolling ball pens has a unique twist design that allows for it switch to be used for either a rollerball or a ballpoint pen; Free ballpoint refill is included with the rolling ball pens to give you a choice of technologies.  Free Engraving is included