Amzer Mirror Screen Protector with Cleaning Cloth for LG Optimus S LS670 Amzer Mirror Screen Protector is like a mirror that prevents your Touch screen from getting scratched. This screen protector is made of thermo-plastic polymer. Looks and works like a mirror when your LG Optimus S LS670's screen is shut off. Once the screen is activated, screen contents appear like normal. Error-proof installation - Easy to apply with no bubbles.