Screen material: Matte color: White gain:1.1 aspect ratio:1:1 diagonal:119" wiewing area(wxh):84"x84" operation: Manual pull-down white viewing angle:160degree occasion: Indoor perfect optimal image and color. Self-locked system designed to get variable height settings. Matte white viewing surface diffuses projected light uniformly. 4 standard black masking borders to get high quality image. Black-backed screen material prevents light penetration. Perfect for computer, video, slide and overhead projection in the home, office or classroom. Easy to clean and safekeeping surface, lightweight steel case with reliable spring inside for quick installation. The projection screen has a convenient self-locked system with superior reflectivity and a matte white surface. Package content: 1 x projection screen note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures, but not the same performance on different bodies as on the model.