Paint Marker, 13mm wide mark, White Marks Virtually Anything Solid Marker was originally invented by Sakura in 1977 for the shipbuilding industry. Made for big tough jobs, choose the popular Solid Marker to mark through oil, grease, and rust, and mud, and snow - inside or outside. It is absolutely permanent. Solid markers won't fade or wash off like chalk. Optimum use for these markers are between 14 - 392 Farenheit. The special stay fresh twist top keeps paint fresh. These solid markers are used by divers to mark things underwater, used on construction sites to label anything exposed to the weather and also used by auto recyclers to mark sheet metal, auto parts, and windows. The solidified paint in the handy applicator marks smoothly from the first stroke. They mark on almost any surface, and leave no mess and no dripping. Solid Markers are available in 11 colors plus a Glow-In-The-Dark marker. Colors Available are: white, blue, black, red, green, purple, orange, yellow, fluorescent lemon, fluorescent orange, and fluorescent pink. Note: Not recommended for use on fabrics intended to be washed, on food service or ceramics that are washed, and not evaluated for cosmetic use on skin. They meet ACMI non-toxicity standards.