The uni-ball one ink is different from common gel inks, and uses new pigments to minimize the penetration of colored materials into paper fibers. The black is darker and the colors are more vibrant and can be easily remembered, with crisp text. Quick-drying ink that penetrates quickly to the surface of the paper, yet does not bleed through and bleed through. The shaft design has a simple straight shape, and the shaft color is off white for a calming impression. In addition to its stylish design, the oval shape of the "open wire clip" is a movable clip that is easy to clip in to your notebook or notebook, and it is also functional. Compared to the original Uni-ball One, the Uni-ball One F features a wider barrel and a lower center of gravity, making it more comfortable to use for long writing sessions.
