uni ball eye ultra micro rollerball pen 0 38 mm Colors:Blue Just like all other pens

Just like all other pens from On The Run

with more than 300 illustrations

Sketchbook from Stylefile with 120 gsm paper adapted for alcohol-based markers

especially while you're still learning how pressure changes the line

solid pigment particles suspended in a water base instead of a dye that dissolves into the paper

uni ball eye ultra micro rollerball pen 0 38 mm Colors:Blue Just like all other 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