3M Framed Desktop Monitor Privacy Filters offer outstanding privacy protection; allowing only those directly in front of the monitor to see on-screen data. Anti-reflective surface reduces screen glare. Fits 21.5" to 22" (546 mm to 559 mm) widescreen LCD desktop monitors with a 16:9 aspect ratio. Actual filter viewing area dimensions are 19 13/16" x 11 5/16" (503 mm x 287 mm). Two easy-to-use attachment methods – 3M Command adhesive and attachable hanger arms. Helps protect the display from scratches and fingerprints. Easy to clean surface is smudge-resistant and repels permanent marker. Supplied by Hypertec.