uni-ball Products - uni-ball - Signo Gel 207 Roller Ball Retractable Gel Pen, Blue Ink, Micro Fine, Dozen - Sold As 1 Dozen - Features Uni-Super InkTM that helps prevent against check and document fraud. - Textured grip. - Semi-translucent barrel. - Gel i uni-Super Ink specially formulated to become trapped in paper, helping prevent criminal check washing and other document alteration. Textured grip provides superior writing comfort and control. Stylish metallic accents with a high quality finish. Archival quality and acid-free ink for documenting and recordkeeping. Quick-drying, water-resistant ink.