The whiteboard, need to be maintained. Clean and continuously, if not care as it should, will result in the board.Each room is clean. And still leave stains from the ink pen can not remove clean also, the audit found that a long period of use. The quality of the eraser could probably work efficiency originally intended. The author therefore that should provide equipment to help care for the whiteboard clean. Without the stain left over from deletion. So that each room has clean board more negative, easy to teaching