Ab Rocket Abdominal Trainer with Flex Master Attachment Ab Rocket workout device for toning abdominal muscles or strengthening core (Ab Rocket Twister is not included with this package) Back and head apparatus comfortably supports you head and neck; folds for storage Flex Master workout device provides resistance strength training Strengthens and tones upper and lower body, hips, buns and thighs, arms, and chest Includes low-calorie meal plan and instructional DVD