Why choosing this LCD write board?Ultra 1/8 thin inch,10 inch LCD writing table.Sealed 3V watch battery provides over 50,000 erase cycles.The case and LCD are made from durable plastic materials.Integrated magnets allow for easy mounting to compatible surfaces.Environmental-Friendly and EconomicallyAn alternative to traditional paper, Erase your image with the Touch of Erase Button,saving you a lot of money.Good Company for ChildrenGood Company for Children in Daily Life and Study Good for Writing, Arithmetic, Spelling and Drawing practice.Good