Uni-ball Signo Gel 207 Roller Ball Retractable Gel Pen, Black Ink, Medium, 12pc: * Features Uni-Super Ink that helps prevent against check and document fraud * Stylish, textured grip provides exceptional writing comfort and control * Semi-translucent barrel allows you to monitor ink supply and see when you are running low * Gel ink is fade-proof and water-resistant, preventing your documents from smudging * Special ink type: gel * Pen style: retractable * Ink color: black * Pen type: roller ball