on the Men`s
Mouth of the gas lamps, commonly known as Hot Wheels.
The Hot Wheels uses vibration sensor switch.
When the wheel rotates, the vibration will generate an appropriate light!
Automobile, motorcycle, bicycle universal gas nozzle lights / Hot Wheels.

The role of Catherine Wheel:
Hot Wheels is not just for decoration or emphasize their personality.
More important role is to alert other vehicles when riding at night!
This is a friend of the night ride is very important!
In particular, low-light sections, with it, can be the greatest
Limits for motor vehicle drivers in the early detection of you!
So that they could better protect the safety of themselves!