(4:3) 41x55in.--68" Diag. Carl's UltraWhite Projector Screen Material (4K Ultra HD, HDR Ready) UltraWhite 4K specializes in the most clear, most crisp 4K Ultra HD and HDR Ready images and is Active 3D compatible This Ultra HD, industry grade, screen material works best in a dark viewing environment, such as an indoor movie theater This Non-tensioned screen material is ideal for wall-mounts or roll down applications, but can also be attached to a wooden fixed frame Its high-end, zero texture, seamless, matte white surface has a gain of 1.0 which features bright and vivid colors. Wide viewing angles of 180 (90 +/- Left/Right) embody this front-projection, 4K screen material Project onto the matte white side of this high-tech 100% PVC product, its black backing prevents light from passing through the screen. Works with standard, 1080P/4K projectors and ultra/short-throw projectors. Ships Wrinkle-Free Rolled on a Tube