Non-roll away weighted balance ball offers a flexible chair for school and home enabling increased focus and improved performance. STAYS IN PLACE – Reduces fidgeting and increases concentration with an original weighting feature keeping it in place when not in use. INCREASE FOCUS – Keeps the mind engaged as the constant ball movement increases blood flow to the brain. STRESS RELIEF – Improves performance by providing an outlet for excess energy alleviating anxiety, stress and boredom. IMPROVES POSTURE – Builds core strength and a healthy posture.