FeaturesPaperMate Flexgrip Ultra Ball PenQuality ball pen with unique rubberised barrel and grip area for added writing comfortContains lubriglide ink which is water and light resistant ensuring a smooth performance every timeMediumColour - BlackChoose PaperMate Flexgrip Ultra Ball Pen Medium (Pack of 12) for comfortable, high quality writing in any environment. Paper Mate\'s Lubriglide ink provides smooth and clear lines when writing all day long.  Like all Flexgrip pens, these pens feature a rubberised full-length barrel that provides all-day comfort and control. These pens feature a cap that protects the nib and prevents ink from drying up when not in use.