This innovative chiropractor-developed chair works your core and improves your posture while you work! Combines core exercise and stabilization with ergonomic back support for unbelievable comfort. The new kit includes two anti-burst, 52cm Balance Balls, so you have one for the black base and one for workouts. After your work day, use your ball as a total-body fitness tool with the included Covered Resistance Cord and Total Body Balance Ball DVD, with two full-length, head-to-toe workouts (105 minutes). Also includes air pump and exercise guide. For people 5' to 5'11" tall. Some assembly required.

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