... motion to give your entire midsection--upper and lower abs, side oblique, and upper and lower back--a full, 360-degree ... all while you remain seated. Features:-Easy, comfortable workout:-Adjustable support bracket:-Foldable and easy to store:-Rolling, Massaging Back; -Get the ... get a firmer, flatter abdomen without sit-up and crunches, abdominal and cardio all-in-one exerciser. 4. helps perform ...