Utilizing microlouver technology from 3M, Lenovo Privacy Filters help keep sensitive information like login credentials, company financial records and other private data secure from visual hackers. Crisp and clean display clarity directly in front of the screen, yet “blacked out” on side viewing angles. Ensure you have a strong first line of defense in the fight against data security with Lenovo Privacy Filters. Designed with advanced microreplication technology suited for open-area workspaces; Reversible solution: gloss option for better clarity or matte option for anti-glare in bight conditions; Designed to seamlessly fit within the raised bezel of your device; Easy to install, attach and reattach and cleaned