If you have an exercise ball or have thought of getting one, come to class and put it to good use. The Stability Ball (Swiss, Abs, Therapy) is one of the most effective and inexpensive pieces of equipment to train the muscles of the body. You can get a complete workout in this one-hour class. It will train your core muscles to aid in balance, increase strength and improve posture. Bring your ball, a sticky yoga mat and/or towel. You'll love the 10-minute stress-reduction "centering" session at the end of every class.