Powerball Wrist & Arm Trainer
Try on this new, addictive, multi-faceted device that is rapidly spreading across the world into the hands of the young and old alike! This is the Powerball Wrist & Arm Trainer! It's a baseball-sized handheld device that can be used in a fitness, sports, rehabilitation or fun manner making it fun, pleasurable and very addictive. With its gentle yet dynamic, non-impact nature and compact size it can be used anywhere and whenever you have free time!