Found in better-equipped workout facilities, this is the stretching aid that employs the body's weight to improve flexibility. Particularly effective for stretching the lower back, its pivoting seat and kneeboard enable users to isolate a muscle to lessen overall resistance and control the intensity of a stretch - you stretch using the machine rather than the machine stretching you. Improved posture, improved circulation, and a decreased risk of lower back pain are listed as benefits of a stretching program by The American Council on Exercise. The included DVD and guide book illustrate 18 stretches that target every major muscle group. Its design encourages proper position of the pelvis, knees, and back, unlike lesser machines that enable poor alignment. Made from a solid steel frame, it supports users up to 300 lbs. Wheels provide easy transport. 48" L x 37" W x 32" D. (65 lbs.)