Stretching and toning device

An exercise device that accommodates stretching and toning exercises otherwise performed with an exercise ball. The device comprises a stable support structure and a padded bench that rocks back and forth on the stable support structure safely and predictably in response to the user's movements. The support structure can take a variety of different forms, including an A-frame geometry, a triangular geometry, a T-shaped geometry, and in the form of a pedestal base. A user, during exercise, can support part of his weight on the bench, and cause the bench to rock back and forth by alternately relaxing and contracting selected muscles.