Product Features⭐:Single induction vibration type, the wheel will glow when it turns, it turns very beautifully, fine craftsmanship.⭐:Suitable for all kinds of models: cars, motorcycles, mountain bikes, electric vehicles⭐:Screwed to the wheel valve mouth can be⭐:Configured with an adapter, can be applied to American. British to French valves.Product specificationName: Glow stick type wind turbine valve lightMaterial: half aluminum and half plasticSize: 6x0.8cmCircuit: independent circuit design, composed of dynamic induction circuit, light-emitting circuitColor: red, yellow, green, and blue, inside the LED bulb is what color what light!Packaging: color card blisterPower: 3 AG10 button batteries (product comes with)Note1, received the baby for the first time make sure to unscrew the back cover, the battery in the middle or the battery and the spring in the middle of the insulating sheet removed, otherwise it is a short-circuit phenomenon, will not be bright!2. In the first seion, pay attention to the battery anyway, do not install the reverse!3, this light has a condition is the induction of vibration, vibration will flash, in the case of relative static, the light is not bright.