Bonus - Comes with a free "no-guess" exercise ball tape measure for proper inflation. Search YouTube (isokineticsinc) for ball inflation demo. The Isokinetics Inc. Adjustable Back Exercise Ball Chair is the first of its kind to include a weight bearing, adjustable seat back. Similar chairs seat backs are designed only to provide position guidance and balance assistance. With our seat back, you can lean back and relax, like in a regular office chair, or position it on your lower back to provide additional support, reinforcing a proper, upright sitting position. We provide all of our chairs with a 1 year guarantee. Sitting on an exercise ball while at home or work promotes flexibility, coordination, motor skills, core strengthening, and balan
Price:$99.95