Type: Projector Screens Specifications: 50'' x 50'' Matte White Screen Material: Matte White Screen Format: Standard(1:1) Features: • System can be installed over Da-Lite’s Imager, Da-Snap, Perm-Wall or rear projection screens or over any other permanently wall mounted screen (sold separately). • Masks the screen from an NTSC format to either an HDTV or Letterbox format. • Masking fabric will mask the screen equally from top to bottom. • Masking fabric will close symmetrically to correct format.