Features: 3M PF319 Lightweight Privacy Filter for standard formatted desktop LCD monitors fits a 19-inch diagonal viewing area, This filter is designed for standard desktop monitors with screens that appear more square than rectangular, Lightweight framed filter will not change monitor position, Helps keep confidential and private information safe, Utilizes 3M's microlouver privacy technology so only persons directly in front of the monitor can see the image on-screen, Passersby see only a dark screen, Excellent for high traffic areas, No hanger arms required - uses Command attachment method for durability and clean removal, Reduces up to 95% screen glare, Helps to protect your LCD panel from scratches and abrasions.