This is no ordinary exercise ball. It is a miracle worker. David has always liked to bounce, especially when he is sleepy. As soon as we start bouncing he is relaxed and starts to fall asleep. It is so important to his happiness that we have 3 balls- one at every location we frequent. We do NOT want to be without it. Ryan broke the one at the lake house one night a few weeks ago while bouncing David and we absolutely had to get a new one first thing the following morning before David's morning nap. I am so thankful our chiropractor, Dr. Allison, suggested we try this to help take some pressure and stress off my back!