DYKEM PAINT MARKERS 2 PC BRITE-MARK, INDUSTRIAL ALL PURPOSE BLACK #84002GENERAL PURPOSE, QUICK DRYING PAINT WRITES CLEAR, BOLD MARKS ON ALMOST ANY SURFACE, WITHSTANDS INDOOR AND OUTDOOR CONDITIONS WITHOUT FADING, WRITES PERMANENT, NON-SKIP MARKS, FOR COMMERCIAL/INDUSTRIAL USE ONLY, WORKS ON VINYL, STONE, CONCRETE, METAL, GLASS, PLASTIC, WOOD, RUBBER, & LEATHERreturns must be in original package, unused and unmarked Packaging may change, ITW Dykem markers have the correct part number on them. To Operate, shake the pen, and push the tip on paper or similar to get the paint to start coming out.