BH1177 Features: * Projector screen * Matte white fabric * Black steel and plastic components eliminate scratches * Slat saddle keeps viewing surface flat * Both case and upper shaft adjusts easily on tripod upright * 1"" Black masking border to assure best quality video image * Ideal for computer, video, slide and overhead projection * Built in keystone eliminator tilts the screen forward to compensate for distorted images * Flame retardant and mildew resistant Construction: * Lightweight yet durable construction Dimensions: * Screen dimensions: 50""H x 50""W * Housing dimensions: 66.9"" H x 7.9"" W x 4.5"" D