Da-Lite's Parallax is a 2.5" thick bezel fixed frame that comes standard with Pro-Trim finish to help absorb light surrounding the viewing area. This screen features Ambient Light Rejection (ALR) surfaces including Parallax Pure 0.45 and Parallax Pure 0.8 that attach to the back of the frame with O-rings. Available in 16 - 9 HDTV, 16 - 10 Wide, 2.35 - 1 Cinemascope and 21 - 9 Ultrawide formats, it complements the brand's extensive 21 - 9 product offering. This screen is ideal for Pro AV - where it can be flown with the support of spreader bars as well as residential installations. Delving deeper into the screen surface, each layer of Parallax Pure plays a crucial role in preserving image quality in high ambient light environments. The ambient light-rejecting technology incorporates a micro-layered optical lens system that rejects light. Some layers absorb light, while a special saw-toothed-shaped layer blocks light from above, preserving high-contrast, bright images even in brightly lit environments. This technology mimics the look of a television but without the glare from windows or lighting fixtures. Parallax Pure 0.8 surface for standard throw projectors (1.5 - 1 or greater), Parallax Pure UST 0.45 surface for ultra short-throw projectors (0.4 - 1 throw or less), Thick 2.5" bezel aluminum frame finished with black Pro-Trim fabric covering to enhance appearance and absorb light surrounding the viewing area, Screen surface attaches to frame with O-rings, Ships unassembled and easy to install.