Gaiam Classic Balance Ball Chair, Stability Seat (Black) | 52cm stability ball chair builds core strength while you sit. Includes pump & exercise guide.

About this product

• Boost Focus & Energy – Engages micro-movements that stimulate muscles and mind, helping improve concentration and productivity whether at home, school, or the office.
• Ergonomic Support for Better Posture – Designed with the help of chiropractic experts to reduce lower back pain and promote upright sitting by strengthening your core muscles.
• Custom Fit for Most Desks – Ideal for users 5' to 5'11". Compatible with most standard desk heights. Add 2” with Gaiam Leg Extenders (sold separately) for extra height.
• Complete Set Included – Comes with a 52cm removable balance ball, chair frame with 4 caster wheels (2 lockable), metal support bar, air pump, and exercise guide. Weight limit: 300 lbs.
• Assembly & Inflation Tips – Easy to assemble in minutes. Follow inflation instructions for best results: initial inflation, rest period, then full inflation to 52cm.

Product details from Amazon.com.