Master Pilates instructor Mari Winsor is targeting your core in these two brand new 20-minute ab workouts. Strengthen your powerhouse while you get a small waist, flat abs and a long, lean look. "Flat Abs Workout": Features over 17 ab sculpting moves sequenced to provide a core conditioning burn. "Abs Definition": Targets your abs from a variety of angles to hit every ab zone for a sleek, flat midsection. Downloadable Pilates Total Body Workout - Offers a classic, head-to-toe mat session (10 minutes).