3M Privacy Filter for 12.1" Standard Laptop (4:3) (PF121C3B) 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 Designed to fit standard laptops with a diagonally measured 12 3/16" viewing screen and a 4:3 aspect ratio Actual filter dimensions are 9 3/4" wide x 7 5/16" high (247 mm x 186 mm) Includes your choice of two easy-to-use attachment methods 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 Great for high traffic areas such as airports, airplanes, commuter trains, coffee shops and other public places Limited 1-year warranty