These gaskets aren't even close. You work the gasket lip around the light housing as you tighten it to the valance. Just when you think you have it, the gasket pops out by the screws where the holes are in the gasket. Bad reproduction.
If you can see on the picture there is a notch in the seal where you can press the housing into. However, this does not work. The lips constantly fall off with 15 tries I quit and am just gonna return it.