Power Ball, Spin Ball, Gyroball,Wrist Ball2007-8-20
It is application by centrifugal force & inertia like a gyroscope.
Dynamic
There is no any battery or electricity inside the device, it is powered by...
|
Power Ball, Spin Ball, Gyroball,Wrist Ball With Counter And Lights2007-8-20
It is application by centrifugal force & inertia like a gyroscope.
Dynamic
There is no any battery or electricity inside the device, it is powered by...
|
Power Ball, Spin Ball, Gyroball,Wrist Ball2007-8-20
It is application by centrifugal force & inertia like a gyroscope.
Dynamic
There is no any battery or electricity inside the device, it is powered by...
|
Power Ball, Spin Ball, Gyroball,Wrist Ball With Lights2007-8-20
It is application by centrifugal force & inertia like a gyroscope.
Dynamic
There is no any battery or electricity inside the device, it is powered by...
|
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