Want to experience an athletically designed work-out? Use the 3550 Calf Press. The machine can be used both as a calf press and a hack lift which gives the users two work-out functions with one unit. The pushbuttons for altering the resistance are located in such a way that one can easily change the resistance also during the exercise. Moreover, the 3550 Calf Press features the resistant adjustments, free adjustment switch as well as a digital display and large mushroom buttons, very user-friendly indeed.