The Auto-lock Manual Projection Screen PSBA108 is perfect for education, commercial presentations or residential home cinema. This auto-locking system with dual wall and ceiling installation design provides variable height settings in any position. The screen lanyard for easy operation included – allows screen’s pull down handle to be reached from high areas. Black backed screen material eliminates light penetration for superior color reproduction. Standard 4-side black masking borders. Fiberglass matte white screen material with 1.2 gain and 120°viewing angle is durable and easy to clean. Optional grey matte white fabric (0.8 gain,160°viewing angle). The projection area of this 108’’ screen is: 2.40×1.35m.