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what is this for? the wrinkly piece of plastic? sorry, don't understand.
No that's during the install process. Once it's done it's almost invisible and protects the paint finish.
Many of the PPF's now have self healing properties as well.
https://avalonking.com/blog/the-truth-about-paint-protection-film-ppf/
$700 for the front bumper, grill, under the headlights, the piece between the grill and hood, 12” up the hood and the mirrors.