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Dyna Flex Powerball RPM Meter Price: 19.95
| For use with the Dyna Power Ball, this very cool little RPM meter attaches directly to the Power Ball and offers a number of different informative functions. | Features:- Instant Speed Change: indicates your current level of RPM's.
- Highest RPM: this mode will automatically store the highest RPM acheived.
- Physical Strength Index: Gauge your arm strength!
- Note: For use only with Dyna Flex Power Ball Gyro
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