It's paired with the Ab Rocket Flex Master attachment, which combines with the Ab Rocket to create a home gym for a total body workout. Offering resistance strength training, challenging cardio routines, and effective ways to heighten metabolism, the Flex Master is a great aid in strengthening and toning upper and lower body, hips, buns and thighs, arms, and chest. Just 5 minutes a day is all you need to build the body you've always wanted.