Screen Protector for Samsung Galaxy Prevail [Wireless Phone Accessory] Designed for perfect fit with the Samsung M820 Galaxy Prevail screen, offering full screen protection Offers tough, durable, transparent surface while keeping the screen clean and reduce fingerprints Attaches smoothly with self-adhering surface; leaves no residue when removed Matte Finish Surface: For anti-glare. Also enhance the experience and utilization of touch screen and stylus features Doesn't effect the touch screen