This screen protector's unique material can Protect your IPHONE 3G against scratching and abrasion.It can enhances your screen by reducing the distractive glare that is caused by reflected light. The surface is not textured like other screen protectors, so the smooth feel of your IPHONE 3G's display is left unchanged. The Screen Protector is very easy to apply and remove. It can be removed without leaving any residue mark. This kind of screen protector can resistant to erosion and finger-printing.