Model SFL 22" Diameter Right Light Tunnel - Flat Glass with Integrated Flashing - Roof: Shingles - Flexible Light Transmitting Tube: The light transmitting tube is made of metallised polyester, additionally reinforced with metal wire, This design produces a robust and flexible light transmitting tube which is ideal for installation over short distances in rooms with structural obstacles that have to be bypassed - Roofing Element: This consists of an aluminium frame into which 4mm thick toughened glass is bonded, The light transmitting tube is fitted to the inside profile of the frame, The roofing element is made of aluminium sheet metal or special organic glass and is integrated with flashing - Ceiling frame: The new ceiling frame is made of organic glass and is equipped with a built-in light diffusing element, The cover is manufactured of high-impact polystyrene in a white opaque color