A4,A3,A2,A1,A0 led slim light box 1.Any size can ... be customized 2.Snap frame can be opened to change the poster 3.17mm slim A4,A3 ... ,A2,A1,A0 led slim light boxDataProduct nameLED Light BoxModel No ... frame can be opened to change the poster easily;3.CE&ROHS approved4.IP42 good ... change the posterBack side A4,A3,A2,A1,A0 led slim light box