Carl&rsquo;s FlexiGray Projector Screen Material (16:9 | 126x224 | 257-in | Folded) 4K, HD, High Contrast Gray/Grey, Low Ambient Light, DIY Movie Screen, Front Proj, Cut Cloth, Tensioned Projection Screen 100% PVC (Mildew Resistant) 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. This item ships folded in a box by default. View the Product Details and our Technical Specification [pdf] documents below for additional information.