Carl&rsquo;s FlexiGray Projector Screen Material (16:9 | 49x86 | 98-in | Rolled) 4K, HD Projection Screen, High Contrast Gray/Grey, Low Ambient Light, DIY Movie Screen, Front Proj, Cut Cloth, Tensioned Provides clear, crisp, sharp images because its surface has little to no texture making it great for 4K UHD, HD and active 3D projected images Offers a premium matte gray surface with an approximate gain of 0.8-1.0 that provides greater contrast with deeper blacks in environments with low ambient light concerns Tension-Mount/pull tight over a wooden fixed frame for best results and clear, crisp images (like an artist canvas, drum or trampoline) This is a front-projection material with a black backing to prevent light penetration. It's made of 100% PVC and has a mildew resistant coating which is easy to clean. If ease of installation is your priority, select an option that is rolled on a tube to avoid folds and wrinkles. View the Product Details and our Technical Specification [pdf] documents below for additional information.