The Junior Ball Chair is a positioning chair designed for use by adolescents and adults with mobility or neurological disabilities. This chair is designed to be used in a classroom setting for students with processing disorders who are unable to sit for long periods or students with low tone. This active seating chair with wiggling motion is designed to enhance the student’s ability to focus in a group or classroom setting. It is also helpful for exercising, improving sitting posture, and strengthening core muscles. Features include a wide back support and easy glide locking casters. Made of latex, this chair comes complete with an air pump and a therapy ball. DIMENSIONS (HxDxW): 31 x 22 x 21 inches. The therapy ball portion of the chair is 20 inches in diameter.