Repositionable chalkboard and whiteboard. Otherwise known as Chalkie and Whitie. These guys can stick onto metal, glass, wood, plastboard and brickwork. Write on them with chalk or erasable marker, rub off and re-write again and again, as many times as you like. The board can be removed and re-applied 1,000's of times. 5 standard sizes available. Based on 240mm x 180mm with full colour (mouse mat size approximately).