3M™ PF324W Lightweight Privacy Filter for widescreen formatted desktop LCD monitors fits a 24-inch widescreen diagonal viewing area. Actual filter viewing area dimensions excluding the frame are 20 7/8-inch wide x 13 1/8-inch high. This filter is designed for widescreen desktop monitors with screens that appear more rectangular than square.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. Uses Command™ attachment method for durability and clean removal; optional hanger arms included. Reduces up to 98% screen glare. Helps to protect your LCD panel from scratches and abrasions. Made in the United States. One year warranty from date of purchase.