1.Slim light box 2.Size:40*60cm ,55*80cm ,60*91cm ,66*106cm ,66*121cm 3.Thickness:2.8cm , 3.0cm ,4.2cm ... Slim light boxThickness:2.8cm , 3.0cm ,4.2cmOpen style ... image and sound, making light box advertising more vivid. • Optional edge lighting function, makes the light box more dazzling Crystal super Slim Light ...