1.Slim crystal light box 2.Ultra thin, only 1cm thickness 3..Easily to change pictures Double sided crystal light box : Materia: Acrylic , LGP, LEDsFeatures:1.Easy to change the photography 2.Maximum size: 1.8 M*1.2M, Minimum size: A5, Customized size are available 3.Extreme thin: only 10mm thickness 4.Long life span, low Power consumption, above to 50,000Hours 5. Single sided or double sided ...