Wonder Core Smart and Twister Board Complete Home Workout System VERSATILE and CONVENIENT: Wonder Core Smart is so versatile it replaces 6 resistance gym equipment PLUS cardio to give you the total body workout from the comfort of your own home! EFFICIENT: Wonder Core offers dual resistance to work muscle groups on the way up, and down, to optimize results and get you the body you want and deserve! ADJUSTABLE resistance to accommodate beginners and advanced health and fitness enthusiasts! FREE Twister Board so you can incorporate new exercises to your daily workout routines! FREE Wonder Core Manual, DVD Guide, and Meal Plan. Note: The Wonder Core Smart comes fully assembled for easy usage.