Paint markers or paint pens are permanent quick drying pens that are typically used in industrial applications. They can write on metal, plastic and other surfaces, have thick tips and a long lasting ink/paint supply. Some markers are weather resistant and can be used indoors or out. There are also striping and marking paints when you need to draw attention to, or “mark off”, a particular area, but don’t need the precision of a pen. Industrial or office, we’ve got pens, highlighters and markers in a variety of colors and tip sizes. Find the one that’s right for you!.