The Stretch-Disc from Stretchwell, Inc, is appropriate for lower back, pelvic, and weight shift exercises. The disc can also be used for balance exercises by standing on it, and a number of ball exercises can be performed in a chair with the Stretch-Disc. The disc is 13-inches in diameter. The exercise device is sold individually or in a 10 pack.
For more information about the Stretch-Disc, visit www.stretchwell.com.
Source: Stretchwell, Inc