Caran d'Ache 849 Rollerball Pen - GreyAbout Caran d'Ache 849 Rollerball Pen Grey The Caran d'Ache 849 Rollerball Pen has the traditional hexagonal shape of the famed Swiss 849 ballpoint but with a slightly greater girth and comes in a range of colours making this a great everyday pen. Fitted with a Caran d'Ache rollerball refill in colour black with a medium tip, the 849 Rollerball produces a smooth, regular result from the moment the ink touches the page, drying in only a few seconds.