![Tire Valve Caps](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)
Before installation:
- The first is to turn on the phone camera LED light, 360° full illumination of the fluorescent lamp shade or put it in
Sunbathe for 30-60 seconds, then verify the effect in the dark.
- The same operation is required for all fluorescent valve caps and hub laser decals.