Enhanced privacy and durability Microlouver privacy technology keeps your content confidential in public or traffic areas. The filter appears dark when viewed from about 30° to 40° offaxis and stays clear when viewed straight on. Antiscratch craftsmanship and a dustresistant surface help preserve screen clarity over time. Easy to install and remove Hanging installation design makes placement simple and secure, with easy removal when needed. The hangingtype screen protector is made of acrylic, providing a safe, durable barrier for your monitor. Size, compatibility, and measurements Fits 21.5' widescreen monitors with a 16:9 aspect ratio. Actual filter size: width 19.3 inches, height 11.3 inches. Compatible with HP, Dell, Samsung, Lenovo, LG, Acer, ASUS, ViewSonic, and other monitor brands. Please verify your screen's width and height before ordering; do not rely solely on the diagonal size. Practical use scenarios Openplan offices or shared workspaces: protect passwords, account information, and other sensitive data while working at public desks. Healthcare settings or clinics: safeguard patient information and protected health information from onlookers. Commute or public areas (airports, cafes, libraries): maintain confidentiality for financial data, emails, and content while on the go. Key attributes Function: enhances privacy without sacrificing fronton screen visibility. Material: acrylic, designed for safety, durability, and longlasting use. Performance: reliable privacy angle, antiscratch properties, and dust protection. Compatibility: broad brand support with explicit size guidance to ensure proper fit.