252139 Size: 65" The finest permanently tensioned projection screen for perfect picture quality. The fabric attaches to the frame without snaps or tools forming a pervectly smooth and flat viewing surface which ensures perfect picture quality. This screen has been designed so that it is simple to install and Clarion"s aluminum frame forms an attractive 2" border, for a clean, theatre-like appearance. 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.