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Manufacturer's Description: This stability ball has been designed with a more pliable PVC compound and thicker shell making it more durable than the other stability balls. Perform a variety of strength training, balance, core, and flexi ...
www.thera-band.com/exercise_ball.html
Manufacturer's Description: Thera-Band Standard Exercise Balls are inflatable balls used to strengthen muscles to improve posture and help prevent back pain. Each exercise ball comes with two plugs and an inflation adapter, along with ...