Da-Lite offers the world's widest selection of electric screens for the ultimate in convenience and professional presentations. Whether you choose concealed-in-the-ceiling, wall, ceiling hung, or ascending floor model, you'll find Da-Lite's electric screens meet the demanding needs of business meeting rooms, educational institutions, hospitality and home theater applications. All Da-Lite electric screens offer as standard features: black borders and preset adjustable limit switches to automatically stop the screen at the desired viewing level.It is ideal for large size conference or training rooms. Permanently lubricated steel ball bearings combined with nylon bushings and heavy-duty spring assembly offers smooth operation even in demanding applications. This screen features Matte White surface. It is one of the most versatile screen surfaces and the number one choice for situations where ambient light is controllable. Its surface evenly distributes light over a wide viewing area. Colors remain bright and lifelike, with no shifts in hue. Screen surface can be cleaned with mild soap and water. It's flame retardant and mildew resistant.