For body shaping on the fly! When you need to stay in top shape but time is short, a Lifeline Gym is the only way to go. This device weighs only two pounds! The lifeline gym provides a superior full body workout in 1/4th the time of weights or machines without the hassle - plus so much more. Even more incredible, the Lifeline Gym was proven to be #1 in an independent research report which evaluated the overall performance of top fitness equipment. The secret is the lifeline resistance cable, which has dynamic variable resistance that instantly adjusts from three to 350 pounds of resistance (illustrated exercise booklet tells you how to move from one exercise to another instantly). So unique and comprehensive is the Lifeline Gym that college, olympic and professional sports teams and superstars of every sport use the Lifeline Gym as an integral part of their fitness program. For increasing strength or shaping figures, Lifeline is the best portable professional gym. In addition, it converts into a unique treadmill, pulley system, and variable resistance machine.