Made with permanent ink designed to cut through oil, water and even dust, these Sharpie PRO markers meet the needs of the jobsite. Label plastic totes, write on glass panes and mark a variety of other surfaces with ease, and then clip the marker to your pocket for convenient access. Permanent ink marks on wet, oily, dusty and abrasive surfaces. Durable tip stands up to wear and tear. Anti-roll barrel shape keeps marker in place. Rugged grip area for better control. Break-resistant clip. Lanyard loop at top of cap for quick access and cap safekeeping. For use on metal, wood, plastic, concrete, glass and other surfaces. Fine point lets you create precise lines.