whiteboard / writing board / magnetic whiteboard Description 1.Smooth Metal Magnetic surface board leads to the fluent writing feeling . 2.Double surface Aluminum frame and Galvanized Steel bottom makes the board more strong 3.Any Size from 30*20(cm) to 400*120(cm) are available. 4.Caron packing. 5.Hanging on the wall firm 6.More than 10 years lifetime SIZES SHEET: general sizes (CM)