Just a heads up to anyone considering this screen protector. The blacked out portion blocks the ambient light sensor on my iPhone 4S Otherwise, easy installation and I like it. PS - purchased online for a reasonable price - regular price is not competitive with SGP Glas.t or others. PPS -(edit) after some fiddling have removed the rainbow. [ just noticed an oval rainbow in the middle of the screen - have tried to fix but no luck. ] I am going to give up on tempered glass screen protectors and go back to plastic. Update: I removed some of the black to the left of the top clear rectangle with the tip of a knife - the ambient light sensor works now.