Products Name:Hollow Products Detail: Twin-wall polycarbonate sheet 1) Thickness: 4mm,4.5mm,5mm,6mm,8mm,10mm,12mm, Standard width and length: 2100 x 6000mm 2) Light weight 3) High impact strength 4) Fire retardancy 5) Good Light transmission 6) With UV protection and thermal insulation http://www.bofanpanel.com/