The video is a bit misleading. He his claying a car that probably dosn't really need it. I have clayed many cars, and although it is not that tough, it does take more effort than shown in the video. On horizontal surfaces, you may have to repeat 2 to 4 times to get it where it needs to be. When you are finished claying a car, your arms will let you know that night or the next day.

James