G-Tec-C Hyper Fine 0.25mm pen by Pilot. We love this pen. This black ink roller ball pen features smooth, extremely fine lines. It is perfect any time you need a VERY fine line. Since it is a roller ball pen, it has less feathering or spreading than felt tip pen.
This pen is also available in micro-fine and ultra-fine. You can view these pens in the “You May Also Like” section below