Developed by scientists, this "zero-gravity" exerciser helps improve your health without putting stress on your joints or muscles. This swing machine helps relieve chronic back pain and tension while promoting a strong immune system. Just 15 minutes of this lay down workout offers the same health benefits as a brisk 90 minute walk! Easily incorporate this leg swing machine into your routine to help boost circulation and increase metabolism, you can even do it while watching tv! Remote control features variable massage speeds and an automatic shut off timer. The swing master chi machine includes a 6 ft. power cord, a cushioned ankle cradle. For best results, use wile laying down. 15" x 10" x 11".