Non-roll away weighted balance ball is a perfect flexible chair for school and learning at home. STAYS IN PLACE – The Weighted Ball Seat by Bouncyband reduces fidgeting and increases concentration with an original weighting feature that prevents the ball from rolling, keeping it in place when not in use. INCREASE FOCUS – This alternative seating option for classrooms office, and home use helps to keep the mind engaged as the constant ball movement increases blood flow to the brain. STRESS RELIEF – Active seating improves performance by providing an outlet for excess energy and helps to alleviate anxiety, stress, and boredom. IMPROVES POSTURE – Using a weighted ball as a flexible chair helps to build core strength and a healthy posture. The ideal ball size for active seating allows for a 90-degree angle at the knees and thighs, so they are parallel to the floor while sitting. SAFETY AND QUALITY – The Bouncyband Weighted Ball Seat is lab tested and made with heavy-duty PVC, anti-burst material. It also includes a foot pump, 2 stoppers, measuring tape and a stopper remover for user convenience. Latex free.