SCREEN PRO ALR ambient light rejecting screen filters ambient light with a precision optical coating, enhancing color and contrast. Its micro-serrated structure resists ceiling reflections. Specifically designed for UST ultra-short throw projectors, it creates an immersive home theater experience. It can suppress 93% of the ambient light, with a gain of 0.85, and supports 8K/4K and 3D. Its contrast ratio is 100 times higher than that of a white screen, featuring a wide viewing angle of 178° without any blind spots. Say goodbye to glare, and every frame is clear and vivid. The ultra-narrow 7-millimeter frame breaks boundaries and eliminates visual distractions, keeping all the focus on the projected image. The borderless design, mimicking that of a flat-screen TV, combined with a large-sized screen, brings a stunning and immersive experience. The frameless fixed screen adopts a thickened aluminum alloy double-frame closed design, which is firm and does not deform, and the back is flat. Innovative skateboard fixing device, easy to install with a push, saying goodbye to the cumbersome installation of traditional springs. The fixed-frame projection screen requires manual installation. Refer to the video tutorial on the product page to achieve efficient installation. If you have any questions, our 24-hour online customer service is always ready to answer them for you..syi