1) Flash Wheel Light for car/ motorcycle/ bike

2) Automatically on when the wheel runs; off when the wheel stops running

3) Easy to install twist off your original valve cap and replace with our valve cap LED light

4) 3 x AG10 batteries included (replaceable)

5) Color: as shown in the picture

6) Note: please remove the battery stopper before use

7) Size: 38x17x17mm