?Two-Steps Installation?Easy to use, enabling anyone to install/uninstall quickly. Package contains installation kits (Microfiber Cloth x 1, Bezel Tabs x 3 Sets, Tab Guides x 3 Sets and Reusable Adhesive Strips x 6). ?Anti-Blue Light & Anti-Glare Eye Protection?Anti-reflective surface for enhanced viewing comfort protects your eyes by filtering out most UV and reducing blue light. ?Fits Screen Sizes of 15.6"?For Widescreen Monitor, Aspect Ratio: 16:9. Size: 15.6". Please check the screen size before purchg this privacy screen filter. If unsure the screen size, please do not hesitate to leave us a question in the Q&A section below to confirm. ?Black Screen for Others?Over 15%~23% clarity than other brands’ monitor. When viewing from 30°- 60°, the computer privacy filter makes the screen appear dark and see nothing. ?Upgraded Privacy Shield?The computer privacy screen filter is perfect for office, public and high traffic areas. It limits viewing angle to +/- 30 degrees, data is visible only to persons directly in front of the monitor, while prying eyes beside you see only NOTHING.