led display 1.easy to write and wipe 2.long ... certification,it can use like blackboard,can write and erase for many times.12. Frame: with PVC frame or ... like. Keep wide trail when you paint on the screen,this will let your work lighter and eye-catching. ... , bars, malls, supermarket, window display, etc.2. For decoration in festivals, holidays and parties3. For notice in schools, public places, companies ...