Da-Snap Fixed Frame Projection Screen Viewing Area: 52" H x 92" W Da-Snap with High Contrast Cinema Perf fabric. Permanent Wall Mount Screen. Suitable for mounting on the wall or into wall opening. Easily attach front or rear projection screen surface with snaps. Provides a perfectly flat viewing surface for video projection applications. Surface mounts to back of black powder coated frame that provides a masking border. Frame available with Pro-Trim finish. Pro-Trim is a fabric frame covering that aesthetically enhances the appearance of the installation while absorbing light that surrounds the viewing area. High Contrast Cinema Perf has the same optical characteristics as High Contrast Cinema Vision, and is perforated to allow placement of a center channel speaker behind the screen surface while allowing the sound to transmit through the material. Ideal for use in environments with moderate control of ambient light. Gain 1.1 with a 45-degree viewing half angle.