Laptop Privacy Filter for Apple Mac Book Air 13 inch 287mm (W) x 179mm (H) Keeps your personal or confidential information safe from prying eyes You'll see the information on your display while people on either side only see a darkened screen. MDesigned to fit widescreen desktop LCD monitors with a diagonally measured MacBook Air 13" viewing screen and a 16:10 aspect ratio. Actual filter dimensions are 287mm wide x 179mm high . Reversible, matte side reduces glare and reflections.