Qtx 86 4 3 manual projector screen which can be pulled down to the desired level and set by the auto lock function when not in use the screen will retract back into the housing smoothly when the lock is released via the integral spring mechanism the screen is housed in a white steel case with mounting brackets on either end allowing installation onto ceilings or walls it is also flame retardant and mildew proof the screen itself measures 1720 x 1300mm and has a black border to enhance the