Turn your Sherpa Pen into a roller ball with this custom insert. Featuring silky smooth ink this roller ball is an absolute pleasure to write with and is comparable to the finest roller ball pens on the planet.
Black/Blue - Fine (0.5mm) + Medium (0.7mm)
Red/Green - Medium (0.7mm)
Compatibility: Fits All Classic Sherpa's, Special Edition Sherpa's and Ultimate Sherpa's.