I used only the hood cover. It also came with two small pieces to cover the front corners of the fenders and the mirrors, which I never used. I SHOULD do the bumper as well, but after working on the hood, I'm not going to tackle that area for awhile - too many curves there. If I was to do it over again, I would use the eBay one first. Although it does not have the relief cutouts for the ribs, it does cover much more of the hood and the cost is $25.00 WITH shipping. Your looking at over $100.00 for the 3M one, but it is a bit thicker as I mentioned. So far, after 4,000 miles since install, not one chip on the hood. But, I'm a very careful driver and I don't tailgate. In fact, I intentionally drive back roads and avoid highways just for the stone chip issues. The PA turnpike here is like a sand blaster, especially with construction. But my cars all look good - lol.