A strength machine designed to exercise the muscles of the chest (the pectoral muscle and the front part of the shoulder muscle). The machine has a 7-step pneumatic seat position adjustment, which allows it to be adjusted to the height and abilities of the exerciser. The applied pneumatic actuators allow for easy adjustment of the elements by the exerciser without having to leave the device. The structure of the device is made of a flat-oval section with dimensions of 125x60x3. The stack covers are made of profiled sheet metal. The stack is equipped with a magnetic load selector. The upholstery elements have been adapted to the anatomical shapes of the exerciser, which contributes to the comfort and safety of use.