Blue Brand Portable Computer Privacy Screen Anti-spy Protector Filters(13 inch screen) You'll see the information on your display while people on either side only see a darkened screen Compatible with many devices,such as MacBook Air,MacBook pro,ASUS Lightweight, thin, frameless design Keeps your personal or confidential information safe from prying eyes Designed to fit widescreen laptops with a diagonally measured 13viewing screen and a 16:10 aspect ratio(PF13.3W)