The Cando Adjustable Ball Chair combines the benefits of ball therapy with the convenience of a chair base. You can adjust the height by inflating or deflating the ball to get it to a positions where you feel comfortable. The Cando ball chair holds the ball securely in place by the base design and locking casters. It features a backrest and 2 armrests that will you to sit composedly. The exercise ball chair is ideal for those who spend long hours sitting to engage the core abdominal muscles that will protect the lower back and promote better posture. CanDo metal ball chair includes a 55 cm inflatable exercise ball and chair base. The mobile ergonomic seating systems combine the benefits of ball therapy with the convenience of a chair base. Ball held securely in place by the base. Casters glide on carpet or hard surfaces. Light assembly required. The metal ball chair is available with our without arms.