This alternative seating option for classrooms, offices, and home use helps to keep the mind engaged as the constant ball movement increases blood flow to the brain. Active seating improves performance by providing an outlet for excess energy and helps to alleviate anxiety, stress, and boredom. Using a weighted ball as a flexible chair helps to build core strength and a healthy posture. Lab tested and made with latex-free, heavy-duty, anti-burst material. It also includes a foot pump, 2 stoppers, measuring tape and a stopper remover for user convenience. 65cm (26in) No-Roll Balance Ball Chair 55cm (22in) No-Roll Balance Ball Chair Product Type No-Roll Balance Ball Chair No-Roll Balance Ball Chair Product Size 65cm (26in) 55cm (22in) Height Range 5’7”-6’1”+ 5’1”-5’6” Use at School ✓ ✓ Use at Home ✓ ✓ Use at Work ✓ ✓