Light-Up Valve Cap Pink Blue 2 PcsLIGHT-UP VALVE CAP The Light-Up Valve Cap works while in motion thanks to its built-in motion sensor and photocell. The Light-Up Valve Caps are motion-sensitive; they won't light up unnecessarily when your vehicle is stationary, only when the vehicle starts moving. They operate with 3 LL1130 type batteries, which are included in the package. Product Dimensions 2 motion-sensor valve caps
