Helen an Ab Lounger is a "chair" that you sit in and you do crunches in the chair. You lay on your back and put your feet on a bar and your hands go behind and above your head where there are cloth handles. You use your stomach muscles to sit yourself up and do crunches. You can do them in several different positions i.e. changing from one side to the other and so forth.

I did some checking online and they make a few different types of Ab Loungers. We purchased the Ab Lounge Ultra Sport (reviews for the best results seemed to be with this model). We bought it at Wal-Mart.