led writing board 1.Scratch resistant acrylic board 2.90/26 kinds of flash modes 3.5050 RGB color led 4.CE&RoHS led writing board GL-ADDetailed features:1.Fashionable design: Black aluminium frame with black background2.Screen material: imported high quality acrylic board; Frame material: Aluminum alloy3.Unique design: 4 rubber protectorson the 4 angles of the board.4.More flash modes: 90/26 ...