| Advantages︰ | This product is for indoor exerise.If you rotate its smalled disk,the centrifugal force will work.Therefore,you can do exercises for the whole body.It is suitable for under-exercise,releasing pressure,beer belly.It is very easy to adjust the rotatory strength of a disk. It is also very easy to see the digital indicator,which is including time of exercise,rotatory time,and calories exhausted.
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