light box 1.8mm,15mm, 28mm and 40mm thickness. 2.black, silver, gold or etc for frame ... colour. 3. snap function change poster light box1.8mm,15mm ... , 28mm and 40mm thickness.2.black, silver, gold or etc ... ROHS, UL certification. 28mm Single Side Slim Light Box Item No.Frame SizeVisual SizeThicknessPackage SizeCubic MeterGross ...