Dynaflex Powerball: Package Front
The DFX Powerball Gamer Gyroscope in its packaging. This particular model from Dynaflex is marketed toward gamers who want to improve their dexterity and/or strengthen or rehabilitate their forearm, wrist, or hand.
For more details, read my Geek Gifts 2012 review of the DFX Powerball Gamer Gyroscope.
Photo of Dynaflex Powerball by Wally Bahny for TechRepublic