Abstract: A Portable exerciser for stretching or toning muscles of a user is provided. The exerciser has a stretchable elastic anchor loop and a plurality of supplemental elastic loops of different but interchangeable strength and lengths. Accordingly, loops can be interchanged and interconnected in a series by the use of releasable fastening means such as a buckle or the like, for interchangeably combining such loops into a variety of portable exercise devises.