Manual Instalock Screen Durable Square and Octangonal-shaped housing with powder coated at option. Unique self-lock device makes easy process. Flexibly adjusted to any height as required. Universal mounting bracket with end cap making installation easy whether it is mounted on a wall, suspened or recessed above the ceiling. Special high-low roller makes screen surface totally flat. Surface choices are Matt White, Glass Beaded and Pearlux White and Grey. Widely used in hotels, schools, business centers, meeting rooms, home theatres etc.