Keeps confidential information private with 3M's blackout privacy technology; on screen data visible only to persons directly in front of the monitor, passersby see a blank, dark screen. Offers privacy without blurring or distorting screen images. Reduces glare up to 95%; blocks up to 99.9% of ELF/VLF E-field radiation and prevents static and dust build-up when properly grounded; utilizes the flat frame design; outside dimensions: 14.33 x 17.33 x 0.40 inches (364 x 440 x 10.2 mm); viewing area diagonal is 20.6 inches (523 mm); standard tint glass; warranted against defects for as long as you own your 3M Computer Filter; cleans easily with a soft, lint-free cloth and glass cleaner. Includes two sets of hanger arms for a custom fit on either CRT or LCD monitors. Protects fragile LCD screens from scratches, damage and fingerprints.