Universal Computer Privacy Screen Protector: Suitable for 23 23.6 23.8 24 inch desktop computer monitors, actual filter size: width: 21.5 inches (520mm), height: 12.6 inches (320mm). The Privacy Screen Panel is suitable for various screens. NOTE: Please measure the width and height of the screen before purchasing to avoid buying the wrong size! Enhance Privacy Security : After hanging the Computer Privacy Screen Filter, the screen has a visible area of 60 on the front, which makes the front of the screen clear. From both sides of the computer (30 -60 angle), it will appear very dark and the screen content cannot be seen. Someone who tries to peek over the side will only see a dark screen! It greatly reduces the risk of prying eyes on personal privacy, keeping your confidential information safe from prying eyes. Eyes Protector: The blue light blocking screen protector can filter out up to 99% of blue light and 75% of glare.