253222 A fixed projection screen that"s really easy to install! It assemble in about 10 minutes, the aluminum frame interconnects on site with one simple hand tool that is provided. With a radical new approach to fabric attachment even the toughest critics will be amazed. M1300: The perfect matte white diffusing surface. Ideal for high resolution data projection. Extremely broad light dispersion and spectral uniformity. Panoramic viewing angle and true color rendition. Recommended for use with any type of projector where the light level can be reasonably controlled. Washable. M1300 has a gain of 1.0 and a viewing cone of 180 degrees.