The Manual SRM Pro is a new concept in a well established product. It features a Slow Retracting Mechanism (SRM) that permits the screen to retract slowly back into its casing without being assisted by the presenter. Traditional manual projection screens have a spring-loaded mechanism that will retract the projection surface so quickly that the force of its return may actually knock the entire unit out of its installation. This risk is eliminated with this added SRM safety feature. Additional features include its auto locking mechanism for variable height settings, black masking borders, wide diffusion uniformity, lanyard for convenient operation and a revolutionary end cap design that accommodates both wall or ceiling installations.