Uni-Ball Signo UMN-207E Rollerball Pen Red (Pack of 12) 308684000The Signo Rollerball Pen features a fine 0. 7mm tip for a 0. 5mm line width, which is ideal for detailed work. The pen contains Super smooth gel Ink, which is fade resistant, water resistant and tamper proof. The unique system provides a continuous flow of ink down to the last drop for smooth, consistent writing. This pack contains 12 red pens. Retractable rollerball pen Contains Super smooth gel ink Quick drying ink Rubber grip for comfortable use