After reading the all reviews I decided to buy this, I am glad I did I have an X5 and the bumper was grey not black . This has restored it and it looks like new. I do wish I had bought the larger size to do inside as well. I cleaned all the exterior bumpers with panel wipe, then applied. Come on UF put more pads in 4 is not enough. I have taken before and after photos. I am really pleased with the end result, I have tried many other bumper revival products that all failed.