This abs roller will do wonders on your abs. With a proper diet and a balanced cardio routine, you can achieve a flat, muscular stomach. But start off slowly, these ab exercises will really do a number on your abdominal muscles and you will feel the strained muscles the next day. Don't give up, it will take a couple of weeks to get used to it. These exercises will put additional strain on your shoulders, so pay attention to them and watch your form. Also, if you are older, use much more padding ...