The legendary SOLID MARKER is solidified paint in a marker stick. It marks through oil, grease, rust, mud, snow—inside or outside. Dries within minutes, and is permanent once dry. The special stay freshtwist mechanism keeps paint fresh and ready to use. Solid Marker Slim features a tough, broad stroke, is quick-drying and virtually odorless. PREVENT GRAFFITI ! This product is intended for industrial and commercial purposes only.