Sharpie Pro permanent markers are built for the worksite. This weatherproof marker stands up to extreme work conditions and proudly marks on wet, oily, dusty and abrasive surfaces. Pro markers have tough features for tough jobs, including a long-lasting chisel tip and a no-slip barrel. Thanks to their durable and rugged design, these waterproof markers write well for any trade on the toughest of surfaces. The Sharpie Pro fits the needs of tradesmen and more by being a dependable and precise permanent marker.