Nissen FPREJ Jumbo Feltip Paint Marker, Red (Pack of 6) Marks on metal, plastic, glass, wood, cardboard, leather, and textiles Writes on any surface porous or non-porous, rough or smooth, wet, oily or 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 Marker produces marks of 5/16", 1/8" and 1/16"