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1512x2657 mm Dry Erase Writing Board with Zinc Coated Steel Surface Layer support Marker Writing Description Thanks for the China National Invention Patent technology; the Whiteboard's matte-white, low-gloss surface provides writings with dust free pens which can be easily clean up even stand for 150 days.it's dust-free and easy to clean with the included eraser or a clean cloth, Designed for everyday use, the write board is the perfect solution for office presentations and