A strength machine designed to exercise the muscles of the legs, in particular the muscles of the thighs and buttocks. The structure of the machine is made of a flat-oval section 125x60x3. Pile 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. Elements in direct contact with the feet are made of chrome-nickel sheet equipped with special non-slip rubberized strips ensuring greater stability and safety during exercise. An additional advantage is the unique BWT load transfer system, which protects against injuries resulting from muscle overload, and also ensures an increase in the effects of the exercise up to 30%. The device has an adjustment of the trolley’s starting position, which enables the selection of the angle of the legs.