Specifications ,Format: 1:1 ,Metal tubus: 6.8cm ,blank thickness: 0.35mm ,Viewing degree: 120° ,Gain factor: 1.1 times , ,Projection Screen Size ,Tubus length: 215cm ,Width: 196cm ,Height: 196cm , ,Dimensions ,Height: 206.8 ,Width: 215cm ,Depth: 6.8cm ,Weight: 9000g, 120° viewing angle ,- Light reflection factor 1.1 ,- Wall or ceiling bracket ,- Very good quality/price ratio ,- Quality, as well as the sophisticated Rollo mechanism with lifting function, allow easy enlargement or reduction. The projection screen automatically retracts into the tube slowly and safely. A soft brake prevents fast and uncontrolled retraction. The high quality fabric ensures an excellent image for the viewer