AB-Doer Twist Abdominal Exerciser - $25 (Alpharetta/Milton/Cumming)

Chair made to work abdominal muscles. Folds for storage. Sell for $200 new on Amazon. Cheapest I find used on Ebay is $175 after shipping. Per https://www.thaneinc.com/project/ab-doer-twist/ "Tone muscles and enjoy an effective aerobic workout from a seated position with the Ab-Doer Twist. Its state-of-the-art Torsion-Flex technology activates a wide range of muscles groups. And because you’re properly aligned and supported, you’ll use these muscles effectively, with less stress and less pain."