Sharper Image® RealTouch™ Chair Pad uses smartsense technology to accurately pinpoint your pressure points and deliver a custom massage The four gel nodes are flexible and naturally roll across your back. They are enhanced with RealTouch™ to simulate the feeling of actual fingers to deliver an authentic shiatsu massage experience. An optional heat setting relaxes your body muscles after a long day, allowing you to sink deeper into the massage and come out fully refreshed.