Compared to the original Uni-ball One gel pen, the Uni-Ball One F has improved pigment ink with darker black tones and a stabilizer mechanism with a low center of gravity. The nose on the Uniball One F has a sleek metal finish.
The newly developed Uni-ball One ink uses a new pigment that minimizes the penetration of coloring materials into the paper fibers. The pigment used is a uniquely developed bead pack pigment in which conventional coloring materials are enclosed in particles.
The body design is simple and straight. The black ink uses a black body color that emphasizes the darkness. In addition to its stylish design, the oval-shaped open wire clip is a movable clip that can be easily inserted into a notebook or notebook.