First a large box for a small bottle and thumbnails of 5x5cm buffers that not make old bones on well tarnished by time headlights. Although much is wetted with water, rubbed so much that it still wears quickly and given the size .... When the bottle, any polish can do the same !! Result: I see no difference or very little !! Beware youtube videos: when we just passed the polish, the lighthouse that still has a wet look gives the impression of a restored lighthouse, but when it dries, the effect did not at all the same, we find our good old tarnished lighthouse, with its spots ... Conclusion: to buy extra sandpaper several grains (600, 800, 1000, 1500 and 2000) and much, much elbow grease !! A basic polish to finish (if you rest, you can do with the Plastix), and there we find a correct aspect of the lighthouse. Bon Courage and musclez you well !!!