The step machine is made from sturdy steel with 2 non-slip texured foot pads with hydraulic cylinders This leg exerciser come with adjustable tension knob will change pedal height 10-38cm and the Amplitude of swing 15-25cm The mini stepper exercise machine build in visible electronic readout displays step count, calories burned and elapsed time The stepper machine come with two free training ropes for arms training. Comes with install accessories. The stair stepper comes with a floor mat to protect your floor from wear and tear.