Gaiam Classic Backless Balance Ball Chair, Charcoal | 52cm (20.5 inch) | Active Seating for Office & Home

• BOOST ENERGY LEVELS: Featuring the same yoga ball as the exercise guide, this chair helps to boost energy levels and increase productivity with an active body and a focused and engaged min
• 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.
• INCLUDES: Removable 52-centimeter charcoal exercise ball, an air pump, an adjustable metal support bar, 4 easy-glide casters (2 back wheels lockable), and a desktop exercise guide to stay active
• INFLATION INSTRUCTIONS: It may be necessary to re-inflate the ball after initial inflation to allow the ball’s material to stretch to its final size. Inflate ball with air, let stand for 24 hours, deflate 50% then fill again to 52cm height.

• Assemble the Base — Attach the 4 easy-glide caster wheels to the base. Insert the adjustable metal support bar into the designated slots on the base for added stability.
• Inflate the Ball — Use the included air pump to inflate the 52cm exercise ball. It may require re-inflation after 24 hours to allow the material to stretch fully to its intended size.
• Position and Sit — Place the inflated ball securely into the chair base. Sit on the ball, ensuring your feet are flat on the floor and your knees are at a 90-degree angle. Engage your core.
• Engage with Exercises — Refer to the included desktop exercise guide to perform simple movements that further activate your core and improve circulation while seated throughout the day.

Typical situations where Gaiam Classic Backless Balance Ball Chair helps — illustrative scenarios, not customer reviews.