As an automotive enthusiast, I WAS excited to try this product out. However, as my tests showed, these patches were far from satisfactory .While the adhesive seemed initially strong the patch ripped off after just a few days of use. The size was also an issue, as they claimed to be 'large' but didn't quite measure up. The only positive of this product is the price point, but in this case, you really do get what you pay for..