A pen.

Uni-Ball Eye Micro

Yes, this one is also made by the same manufacturer behind the Posca acrylic markers. Uni-Ball is a solid, high-quality marker that differs slightly from the Uni Pin series. It’s not a fiber tip, but a ballpoint pen — size 0.5 mm, water-based pigment ink. The markers are made in Japan but are available worldwide. …

A product photo of a black marker.

Uni Pin Fineliner

Yes, this is the same manufacturer that is behind the Posca acrylic markers. Uni Pin is a solid, quality marker — I’ve been using these on and off for years. Also one of the cheapest in this lineup, though the price difference isn’t huge since most of the markers I use cost between €2–3.50 anyways. …