Ideal for both indoor and outdoor use this wall mountable chalk board from opn securit is made from the highest quality materials making your writing resistance to smudging and light rain double lacquered on both sides the chalk board is highly effective whether featuring writing or art work the board is suitable for use with liquid chalk markers which produce a higher quality effect and can be easily removed with a wet soapy cloth size h400 x w500mm double sided double lacquered dura