Hello, as promised by the seller I just got my second free hull, it hugs the contours of my iPhone 6, after use of 10 days it is still clear it does not yellow. Protection is very well I think for that price ,,, waiting to find better. I was able to place without too much difficulty, provide a spatula to remove the bubbles, for my part I used a credit card. I highly recommend this shell that remains glued to the iPhone, it does not relax like other shells.