Offering a revolutionary way to work your lower abs, upper abs, and obliques, the wonder core will give you the body you've always wanted.
the wonder core looks somewhat like a new age chair, but with massage rollers across the head and back rather than a traditional backrest.
the similarities end there, however, as the wonder core is designed to pivot with your body as you move forward and backward in a crunching motion, or twist and turn with your
body as you maneuver the padded swivel.