Da-Lite Contour Electrol Electric Wall and Ceiling Projection Screen, 84" x 84", 119" Diagonal, High Power Surface Stylish curved aluminum extruded case designed for wall or ceiling mount installations. Adjustable mounting brackets make installation quick and easy. Screen surface retracts completely into the case for a clean, modern appearance when screen is not in use. Two piece case allows easy access to motor and roller. Viewing Angle: 25