Exercise & Fitness: Powerball Blue Pro 250 Hz – Blue Exercise Ball Hand Exerciser
December 15th, 2012 | 
Author:  | The fastest and most perfectly balanced hand gyro available - capable of reaching speeds in excess of 15,000 rpm, all powered by yourself! This superb exerciser comes complete with a digital speed meter which allows you to monitor your power improvements and test your skills against your friends! | |
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