CUSTOM COMFORT: The 4 intensity levels provide a custom fit for your fitness level; the integrated spring assist allows smooth rebound; and the padded handles and base offer cushioned comfort 2-IN-1 AB MACHINE: This multipurpose ab machine by Zelus is the ideal strength training equipment for your home gym, bringing 4 resistance levels and a pair of arm resistance bands to create the perfect full-body workout in your living room, garage, or office