Sorry I have not been back for a few days went away for the holiday.
The 3M clear bra is a type of protective shield on the front of the car. It goes on in place of those other types of front end bras that mess your paint up.
I have heard feed back from some on here that the film turns yellow after a bit of time. I have a friend who has a Corvette and has had the clear bra on for almost 2 years with no yellowing. Google it and you will find all types of sites on this application.