With an internal gyroscope spinning up to 13,000 rpm, the Dyna-Flex Powerball creates surprisingly powerful resistance, making it useful as both a muscle conditioner and a therapeutic device. Accelerating the Powerball by hand can be tricky, though, requiring a carefully timed rotational movement that can be elusive to achieve. So use the battery-powered PowerDock to automatically activate the gyroscopic! It spins the Powerball up to speed in only a few seconds and it makes a great display stand for your gyro when you're not using it. Dock includes one Powerball Pro and is compatible with other PowerBall, Pro, Pro Plus, TourGrip and ProGrip models. Also includes manual start string. PowerDock requires 2 AA batteries, not included.

MPN: pw-dfp-02
UPC: 019954964269

• Intermediate gyro hand exerciser bundled with gyro docking station
  
• Increases your range of motion and conditions your arm and shoulder muscles
  
• Reaches up to 11,000 rpm and creates 30 pounds of torque resistance
  
• Helps prevent and/or eliminate carpal tunnel, arthritis, and tennis elbow
  
• Docking station activates gryo within seconds; requires 2 AA batteries