... size: 2.1m(w) x 6m(l);custome lenght acceptable.blue polycarbonate hollow sheet,pc panel. 1. Features: 1) High light ... .3, 2.5, 2.7 5) Colors: clear, lake blue, green, blue, opal, brown, silvery gray, red(Other color can be ordered ... request) 3. Applications: 1) Roofing light sheet and sunshade for office building, department store, hotel, stadium, school, amusement center, hospital, ect ...