and calligraphy gel pens

The tip is a polyacetal core inside an extended steel needle-guide sleeve

or anyone going through paint quickly

Whether you're cleaning up after a session

uni ball eye ultra micro rollerball pen 0 38 mm Colors:Black and calligraphy gel pensThe Eye Ultra Micro uses a 0. 38 mm tip, the thinnest in the Eye liquid ink line, putting down a needle sharp line around 0. 2 mm wide fine enough for dense tracking grids or detailed entries where a standard 0. 5 mm tip would already feel too thick. Most pens get scratchy or start skipping at this small a tip size, but the Uni Flow capillary regulator keeps ink pressure steady through the barrel, so the line stays smooth rather than catching on the