About a month after they put them on, they lost most of their color. I wouldn't care (it's just caps after all) but they also corroded internally and stuck to the valve stems. I had to inflate the tire with air and it took 2 pliers to unscrew the cap. I ended up cutting my hand when it finally came off and bled all over my rim and tire. Definitely not worth the money unless you are a masochist.