These are the factory fog light access panels that go on the inside front of the front wheel wells. If you look into the front wheel wells and notice that you have a large ~ 5" x 5" hole then you are missing the access panel door. It has most likely fallen out and you ran it over a long time ago. Without the panels being there water is being sprayed onto the backside of your fog light housings by your front tires when wet. As most owners notice that both of them are long gone by now, we have them available in this set of both right and left sides as a package.