Target Area :- Lower Abs, Upper Abs, And Obliques. Abdominal chair designed to work upper abs, lower abs, & obliques. Backrest includes padded massage rollers that pivot with your body. Paddded swivel seat twists & turns with your lower abs for core strengthening. 3 resistance levels :- yellow (low), blue(medium), & red (high).Comes with 4 fat-blasting DVD workouts & low-calorie meal plan.