4mm Highlighter Fluorescent Liquid Chalk Marker Pen 8 Colors/set for LED Writing Neon Menu Flashing Board Fluorescent markers, it's actually liquid chalk and glass markers, it can use in markerboards, fluorescent marker boards, glasses and windows! Make your menu's word Colourfully and Shiny! It works as same as normal marker, and dry quickly and becomes bright solid color ! Easy to clean with tissue paper or a damp cloth. 8 Colors/set: Yellow, Green, Red, Blue, White, Pink, Orange, and Purple