... resisitance 3.sound insulation 4.easy install 5.4mm-20mm Color polycarbonate hollow sheet has seven features:1. light-admitting quality ... : Regards the color the difference, the transmittance may reach 12-82% .2. ... (widest) 2) length: 6000mm 3) thickness: 3mm~16mm 4) commonly used color: The transparent,green,light blue,sapphire ,blue dark brown,white ...