Medium line paint marker, 4mm nib.
Recommended for eggshells, Flair the nib for outdoor use.
The Uni Paint PX20 is one of the best markers on the market. Oil-based paint in a handy marker. Marks on virtually every surface! Extensively used by manufacturers, construction professionals and hobbyists. Valve-action marker writes on virtually any surface: glass, metal, wood, rubber, stone, plastic, paper, vinyl, leather, canvas and more. The archival-quality, acid-free, oil-paint ink is fade-, water, and abrasion-resistant, ideal for projects that need to last.