The unique material of the screen protector can protect your iPhone 3G against scratching and abrasion.It can enhance your screen by reducing distractive glare caused by reflected light. The surface is not textured like other screen protectors, so the smooth feeling of your phone's display is left unchanged. What's more, this Screen Protector is very easy to apply and remove. It can be removed without leaving any residue mark. And it can be resistant to any erosion and finger-printing.