1.STAYS IN PLACE The Weighted Ball Seat reduces fidgeting and increases concentration with an original weighted feature that prevents the ball from rolling, keeping it in place when not in use.2.INCREASE FOCUS 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.3.STRESS RELIEF Active seating improves performance by providing an outlet for excess energy and helps to alleviate anxiety, stress, and boredom.4.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.5.EASY INSTALLATION - Easy to use and clean, allowing you to operate with ease.