Different training devices can be selected for the main training module (2-D, 3-D or 5-D). A pull chair helps train arm- and back muscles and improves heart function. This equipment is easy to use and the training difficulty is set by the body weight of the trainer. The device is made of hot-dipped galvanized and powder-coated metal. The seat, backrest and handles have been covered with material designed for outdoor use, to prevent any uncomfortable contact with cold metal.