I enjoyed putting them on the valve stems to complement the overall Wonder Woman theme of my car. Bright colors, tight connections. However, when it came time to change my tires, we found that because they are aluminum, they were rusted to the ground. If my mechanic hadn't taken great pains to remove them, I could have lost my sensors because they were clipped, resulting in a $200 replacement bill on top of the cost of the tire. Be aware that these stems are not a wise investment if you live in a damp or damp environment, or anywhere that uses salt to keep the roads safe, no matter how aesthetically pleasing.