Gaiam Custom Fit Balance Ball Chair (Adjustable)

Boost your strength, energy levels, and overall bodily health, even while seated
Innovative seating solution turns standard balance ball into comfortable, posture-improving chair
55-centimeter, latex-free, anti-burst ball is recommended for users from five feet to five feet, 11 inches in height
Adjustable legs and cushioned back with stable, secure metal base and easy-glide, lockable castor wheels
Includes desktop stretching and strengthening guide, and DVD with three 20-minute workouts and three ten-minute "express routines" This innovative balance ball system turns a favorite fitness tool into a comfortable and functional posture-improving chair. Proper posture greatly increases back strength by working more muscles as you sit. Increased back strength leads to better circulation better upper-body mobility and less neck and joint pain. The best thing about this chair though is that it's comfortable. The 5 More »