Gaiam Custom Fit Balance Ball Chair, Gray

Improve your posture and spinal alignment as you work at your desk with this balance ball chair. Its designed to work your core as you balance on the ball, so you can enjoy a more active day at the office. Overall Dimensions: 21in to 25inH x 19-15/16inW x 9-5/16inD. Weight capacity tested to support 300 lb. Crafted from sturdy metal and latex-free PVC. Adjustable backrest and legs help you achieve an ideal height for your workspace. Wheels roll smoothly across most flooring. Includes a digital workouts.