253008 Size: 6" A permanently tensioned screen that provides perfect picture quality. The screen surface is stretched taut, providing a flat viewing surface with a trim, finished appearance. The surface snaps to the back of a 1-1/2" extruded aluminum frame with a black powder coat finish. The frame is visible and serves as a black border around the perimeter of the image area. 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.