The rear view mirror in the car has fallen off three times in the past few years (always in HOT weather), and I am tired of putting in back on. So, I bought this to stick on the windshield where the original mirror mount was. Works great, very sturdy, and gives a better rear view than the original mirror. Pretty much eliminates the blind spots. Does has a wide-angle image, and takes a bit of getting used to, but provides a safer view of what is behind your car. Plus, cleaning the inside windshield will be easier--I'll just remove this mirror to make the job go faster. No more trying to clean the smears around the permanent mirror.