The Uni Chalk Marker is a non-permanent marker pen which writes on and is easily removed from chalk boards, windows and other non-porous surfaces including metal and plastic. Available in 8 colours, the Uni Chalk marker overcomes the shortcomings of normal chalkboard markers and creates writing that is weather resistant, but which can be easily cleaned off with a damp cloth. The Uni Chalk Marker produces vividly coloured writing using water-based paint.