Uni-ball Signo gel pens are ubiquitous in stationery, art supplies, and office supplies stores. They are popular with students taking notes, journaling, and scrapbooking, as well as offices signing important documents. This is because of Uni's Super Ink, a specially formulated pigment ink that is resistant to light, water, and chemicals, leaving your work safe, secure, and permanent. Achieve extra fine lines with Signo gel pens in 0.28 mm point size. Comes in an array of colors.