Screen Size: 8ft x 8ft (244cmx244cm).MANUAL PROJECTOR SCREENS are operated just like a standard roll-up windowshade, revealed by simply pulling the screen down by hand. It is a generally less expensive, more portable, and smaller in size solution than anelectric projector screen. Perfect for Classrooms, Conference Rooms, simple HomeTheaters. Manual projector screens are smaller and less expensive than electric projector screens.Much like a standard window shade in operation, these models tend to be relatively easy to use and install. Instead of a switch or remote control, manual projector screens extendand retract manually, with the user simply pulling the screen down by hand, locking it in it's desired height. To retract the screen, pull down the handleto release the rolling mechanism to lift to screen back into the casing.