Create vibrantly colored lines that look chalk without the dust. Special formula wipes away easily with a damp cloth. Intended for use on a wide variety of non-porous surfaces, such as slate, glass, metal, plastic, laminates and ceramics. Marker Ink Type: Wet Erase; Marker Tip Type: Bullet; Marker Tip Size (text): Broad; Marker Color(s): Assorted.