Amazonhas theGaiam Balance Ball Chairs (Blue, Blue, Green, Light Green) for a low $59.99 Free Shipping. Tax in many states. This originally retails for a $79.99. This is $20 off and is now the lowest price we have ever seen. Investing in this chair will save on all the chiropractic sessions you will need to fix an injured back and suffering from prolong hours of sitting in front of a computer. 4.1/5 on Amazon with over 1800 reviews Created by Fitness and heath experts Designed for users 5ft - 5ft 11" 300 lb Capactity Includes Air Pump and Casters