Amazon Gold Box Deal of the Day.Amazonhas theGaiam Balance Ball Chairs for a low $59.99 Free Shipping. Tax in many states. This Gaiam Balance Ball Chairsells for at least $130 elsewhere, so you are saving an additional 53% off the next lowest priced vendor thanks to this deal. 4.1/5 rating on Amazon with over 1,700 reviews Helps build a healthier back, align the spine, relieve pain and more Created by leading health and fitness experts to improve your back health Supports up to 300 pounds in weight capacity Designed for users 5ft to 5ft, 11in tall For optimal performance, re-inflate the balance ball once or twice after the initial inflation