3M PFMP17 Privacy Filter for Apple MacBook Pro 17-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 17-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 Helps keep on-screen information private; screen data is visible only to persons directly in front of the monitor. Clearer screen than competitive privacy filters Protects your screen from dust and dirt Reversible, with anti-glare surface on one side Application adhesive specially formulated for display screens