1.Slim light box single face (4cm Aluminum) 2.Thickness:28mm Slim light box single face (4cm Aluminum)Thickness:2.8cm , 3.5cm ,4.2cmFrame color:Aluminum silvery , other colors are availableLighting source: T4 TubeSize:40*60cm ,55*80cm ,60*91cm ,66*106cm ,66*120cm ,etc