3M™ Privacy Screen Protector for Samsung™ Galaxy S® III (Portrait/Matte) 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 enhances your viewing experience by reducing glare and are easy to remove.