Kids stay calm and focused while sitting as these seats give them an outlet for excess energy in the classroom, during meals and at homework time. Allows children to quietly move while working, enabling them to stay on task and be more productive. Flexible nubs on one side and smaller bumps on the other can easily be felt giving a choice for just the right amount of tactile stimulation. Ergonomic disc causes the body to stabilize iteself, improving posture. Easy-inflation pump is included and firmness can be customized to contour exactly to each child's needs. A great fit for a kid's seating while being large enough to grow as the child does. Effective on chairs, benches, or directly on floors.