Easy mount:multifunctional screws,screw it to the tyre valve of car or bike.
Light sensor control :LED flash when the wheel moving on at night,and turn off when the wheel stop.LED Color:blue,green,red,yellow,white or rainbow for your option.
Specifications︰
Color:blue,green,red,yellow or white for your option. Size:16 x 40mm Material:zinc alloy 400Card/carton
