Uni-Ball Signo Gel Grip Rollerball Pen Red (Pack of 12) 9003952This Uni Ball Gel Grip Rollerball Pen features high quality gel ink, which is fade resistant, water resistant and tamper proof. The medium 0. 7mm tip writes a 0. 4mm line width for everyday use. The pen barrel also features a window for monitoring remaining ink levels and a rubber rip for comfort. This pack contains 12 pens with red ink. Rollerball pen with ultra smooth gel ink Ink is fade resistant, water resistant and tamper proof Rubber grip for