The Elite Manual Pull-down series front projection screen is a great cost effective retractable screen with a dual case design for wall or ceiling installation. Perfect for residential, business, or educational applications. Its designed for wall and ceiling installation, L-Brackets are optional. Features an auto locking mechanism to provide variable height settings. Black backed screen material eliminates light penetration for superior color reproduction. MaxWhite screen material is the most versatile screen surface for front projection presentations. This material provides the widest possible viewer angles with perfect diffusion uniformity while giving precise definition, image color reproduction and black & white contrast. Screen surface has black-backing to avoid light penetration and can be cleaned safely with mild soap and water. Woven screen material is a multi-layer, cross-array coated with a matte white reflective compound.