Polycarbonate hollow sheets,we have the best price! POLYCARBONATE HOLLOW SHEETSpecification1) Width: 2,100mm (our regular specification)2) Length: ... .5mm,8mm,10mm,12mm,14mm,16mm ,18mm. Also with twin-wall and triple-wall about 12mm,14mm,16mm,18mm4) Color: clear, lake blue ...