The Smart Wonder Core is a revolutionary 6 in 1 fitness product designed to target your whole core. Focusing on your upper, middle, and lower abs and your obliques! To give you the ultimate total body core shaping and toning workout! Provides total body muscle toning and cardio in one compact system. Allows you to target a variety of muscle groups, including your upper, middle, and lower abs and obliques, thighs, glutes, calves, forearms, triceps, and biceps. Comp and portable. Comes fully assembled, adjustable dual resistance. Exercise DVD & fitness guide included.