I must honestly confess that I had some reservations about this product and there are also a few not so positive reviews. Nevertheless, I have ordered the product, because my headlights were pretty heavily weathered and the luminous efficiency has already suffered significantly. I also have xenon headlights that are yes when buying not cheap. When I saw the show (as always top time) took in reception and checked the contents came to me the next question, because the attached abrasive papers and polishing and sealing paste is not necessarily seemed generous. Nevertheless, I wanted to know what the product can. So I started as described in the instructions with the 2000 paper to me the surface appeared uniformly, then made with the 3000 and the end of the 5000 paper on. until then I found the result mediocre and was very skeptical. Then I took the polish on hand and polished the light with fairly high pressure through quickly. The result, then beamed at me I had definitely not comforts.Each headlights have become very clear and bright, and this result is supported by the sealing. I'm really excited. The remedies is really worth the money. Of course, the headlights are now not new, but the weathering are completely plotted on the surface. Of course damage the plastic (stone chips) can not be sand out. That you should not try too, since otherwise an lensing would adjust. All in all, the result of good and I would do it again and again so. But you should only do a Spotlight completed and then the second tackle (as a previous reviewer already mentioned), because you can get quite "long arms". I have spread my work also to 2 days.