Erasable led writing board 1.full RGB colors 2.2011 new led writing board 3.CE & RoHS 4.best to advertise ... 1.4cm, board thickness 1.5mm, applicable all kinds of display rack display, or directly on the wall, beautiful, not the space ... 6. A variety of modes: Special highlighter written in bright new colors, are free to calligraphy and painting, simple and powerful ...