Gaiam Classic Balance Ball Chair Ball – Extra 52cm Balance Ball for Classic Balance Ball Chairs

OFFICIAL CHAIR BALL: This 52cm Balance Ball is made exclusively for the Gaiam Classic Balance Ball Chair models (Including Backless) as an extra or replacement ball (Chair NOT included)
BOOST ENERGY LEVELS: Using the same ball as the exercise guide, this chair helps to build a healthier core, align the spine, relieve back pain and stiffness, boost energy levels and increase productivity with an active body and a focused and engaged mind
RECOMMENDED USER HEIGHT: Designed for users 5′ to 5’11” tall and fits most standard-height desks. For a taller chair, add 2 inches with Gaiam’s compatible leg extenders, sold separately. 300-pound weight capacity.