fireflys wheel lights Bicycle Flashlight LED Bike

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Name: Bicycle Valve Core Light/fireflys
Material: Stainless Steel
Circuit: Independent Circuit Design , Light control circuit,sensor circuit,LED circuit
Color: Red Yellow Green and Blue 
Package: OPP
Battery: three button battery in every light

 Red,Yellow,Green and Blue is just on the surface,and when it works, all the light is blue!!!