Purchased for a 2016 Silverado WT that did not come with factory tail fairings. The material is thick plastic and looks solid. I like the shine as it washes off very easily. Customization is a whole different story. Firstly, the product does NOT cover the round tube holes in the frame, so you need caps for that. Second, once you have the caps it is very difficult to install the liner as part of a section half covers one of the holes and interferes with alignment. The box they come in twists and bends the liners out of shape. I had to use a heat gun to restore the shape of the earbuds. Two of my screw holes were misaligned by an inch, one of them had a drill mark where it should be, but it looks like the drill slipped and the hole was in the wrong place. I also had to remove the holes from the drilled plastic pieces as they don't clean up. It was a problem getting these things. It took two people, one to line up the holes and press the plastic in place and the other to drive the screws in. screws inside.