*surface col:green/black/white *Magnetic:with/without *frame:aluminium *size:different sizes You can use Chalk for this item! And it is with magnetic!  it will not leave any trance after cleaning on the bright surface. You also can leave a message using magnet ball to improve working efficiency. It is made of the high quality board and durable enough. You can use it for a long period.  It fits well for the school students, office, and home etc. *surface col:green/black/white *Magnetic/ ...>>more