3M PFMP15 Privacy Filter for Apple MacBook Pro 15-inch 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 Custom fit to your Apple MacBook Pro 15-inch The filter application system features an optically clear adhesive designed specifically for display screens. Testing proves that, when kept clean, the filter can be repositioned hundreds of times. Reversible, matte side reduces glare and reflections Lightweight, thin, frameless design Protects display from dirt, debris and scratches Cleans easily with a soft cloth and water