... dustproof3.advanced coating technology,not easy to leave fingerprints on the screen protector4.anti-UV rays,anti-glare, ... screen backlight off,the display vision increased as light on The viewable angle is 60°,no peek any ... material layer,composite silicon layer,electrostatic layer 3.Easy on and easy off,there is no residue left ... Protector1X outer polybag Ultra Clear Screen protector for iphone 4 4G 4S