Uni-Ball Gelstick Gel Pens Medium Point Blue Ink 12 Count Color:Blue Uni-Ball Signo Gel stick Pen - Bold Pen Point Type - 0.7 mm Pen Point Size - Blue Ink - Blue Barrel Sanford s innovations include the introduction of the Sharpie marker Gel ink pen provides a smooth writing experience similar to a roller ball pen with the durability of a ballpoint pen. Uni Super ink is specially formulated to become trapped in paper helping prevent criminal check washing and other document alteration. Visible ink supply so you know before you run out Smooth rubber grip offers supreme comfort for effortless and controlled writing. Retractable tip for added convenience.