Sharpie PRO Permanent Markers Broad Chisel, Medium, Fine Marker Point - Black Ink - 1 / Pack With permanent ink designed to mark on wet and oily surfaces, Sharpie PRO Permanent Markers are built jobsite-tough. These permanent markers with an extra-large chisel tip better fit the needs of tradesmen with features like an anti-roll barrel shape, cap clip, lanyard loop and more. They mark on wet and oily surfaces, including metal, wood, PVC and concrete. Versatile tip makes broad, medium and fine strokes.