FEATURES:
2 tyre valve covers with built-in LEDs
If you want to add that personal touch to your Car, Bike - lighting is one of the best ways
They are self contained with motion sensors, LEDs, and replaceable built-in watch batteries When your wheels start to move, they automatically flash light up creating a solid disk of light that appears to hover above your wheels
When you stop they will switch off to save battery power

Cap Diameter: 8mm
Cap Colour: Silver
Light Colour: Red

PACKAGE INCLUDED: 
2 x red  LED Neon Light Car Wheel Bike Tyre Valve Cap Light Silver 
6 x Battery

(suggest you to buy 4 Wheel tyre caps for your car)