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 19" CRT monitors and 18.1" widescreen LCD desktop monitors. Actual filter viewing area dimensions are 15 5/16" wide x 12 3/8" high (389mm x 314mm). 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.