3M™ Privacy Screen Protectors Universal Trim-To-Fit-Smartphone (Portrait/Matte) is designed to allow you the ability to create a custom privacy film for your mobile phone. Actual dimensions are 3" x 5" (76.2mm x 127mm). This film is designed to be trimmed by you. A cutting grid is included with each piece. Utilizes 3M™'s microlouver privacy technology so you can use your smartphone in public without revealing confidential information. You clearly see your information on your phone while people at your side only see a darkened screen. With a light matte front surface, 3M™ Privacy Screen Protectors enhance your viewing experience by reducing glare and are easy to remove.