Marks on almost anything: metal, plastic, printed circuit boards, glass, wood, paper, leather and textiles
Writes on any surface porous or non-porous, rough or smooth, wet, oily and dry
Marks are permanent they won't chip, peel, fade, or rub-off, they withstand heat and weathering under adverse conditions
Unique precision valve accurately meters flow, so the right amount of paint passes through the tip
Mark is approximately 1/8" wide