Diagonal 16:9 Diag 4K 8K 3D Ultra HDR HD Ready Home Theater Movie Theatre White Projection Screen with Slow Retract Mechanism M100H. 1.1 Gain brightness with wide diffusion uniformity. Superb image reproduction is ideal for commercial or residential applications. Black backing eliminates eliminates light penetration for a brighter picture. *EXTRA HANGING BRACKETS INCLUDED * Size 100-INCH Diag. 16:9 Aspect Ratio. View Size 49.2" H X 87.4" W. Overall Size 65.7" H X 94.6" W White Case. * SCREEN MATERIAL: MaxWhite 2~ 8K / 4K Ultra Hd and Active 3D Ready Front Projection Screen Material. Featuring a 180° Viewing Angle and 1.1 Gain. Greenguard and Greenguard Gold Certified. Compatible with Standard Uhd/Hd Projectors. *** Not recommended for Short Throw or Ultra-Short Throw Projectors*** * FEATURES: 2-inch Interval Auto-Lock Mechanism that allow for Various Height Settings