Designed as an alternative to traditional office chairs, the Champion Sports Kids Ball Chair provides ergonomic benefits by using your abdominal muscles to balance you while sitting and working. Strengthen your core and improve posture, all while providing lumbar support to your back with the Kids Ball Chair. The durable plastic frame is sure to withstand regular use, while the compact, lightweight design and wheels make it easy to transport. This set includes the ball and hand pump, ensuring you have everything you need to make the switch from regular office chairs to exercise ball chairs.