The uni-ball 207 Impact Gel Pens use specially formulated black uni Super Ink that fuses to paper, preventing criminal check washing and other alterations. Each uni-ball pen produces bright, archive-quality color that resists water and doesn't fade. The visible ink supply lets you monitor levels and the rubber grip enhances comfort and control. This gel pen set is designed with sleek, metallic accents for a contemporary look. All uni-ball gel pens have a bold point and are available in packs of one dozen.