6mm chisel tip Wet Wipe marker in Smiley Face Yellow. Great for lettering and creating clean, crisp lines. Chalk Ink® Wet Wipe Markers write like a paint pen but dry to look just like chalk minus the dusty mess traditional chalk leaves behind. Quick drying and smear-proof once dry; you can easily layer with other colored chalk markers to create whatever designs you can imagine. Safe for use on a variety of non-porous surfaces, including chalkboards, Chalk Ink® Chalkboard Paint, glass, mirrors, windows, metal and plastic. To clean, simply wipe away with a cloth and a little bit of water.