Tiny and just the right shade for my tinted gunmetal rims. I know this is a replacement for TPMS modules, but they can also be placed in a rim instead of a rubber valve. I no longer use TPMS in Lexus. This is a nice feature, but it's not too hard to tell that one of your tires is low on air. Optical and driving differences are very noticeable. Do yourself a favor and bring a portable cigarette lighter pump in your car's emergency kit. Modern tires are pretty resilient to most things on theโฆ