Posca pens are water-based but become permanent once dried

bold markings that adhere easily to nearly any surface

Empty 30mm pump marker that you can fill with any paint/ink of your choice

0 mm rollerball pen that makes handwriting bold and expressive

Width of the tip: 15 mm

sakura koi pocket water brush medium Ink and paint refills Posca pens are water-based butThe Medium Koi Pocket Water Brush is a solid all rounder for painting on the move. Its refillable barrel and anti leak stopper make it ideal for fieldwork or sketchbook sessions. Great for general washes or adding mid sized details, and the short barrel fits neatly into any pencil case or travel kit.