Features:

• Ab Rocket twister abdominal exercise chair. Sit, rock and twist to the ripped, washboard abs of your dreams... With no back or neck pain or no personal trainer, no expensive gym memberships. If you can rock in a chair, you can rock your way to the most defined upper and lower abdominals and oblique's you've ever had with the Ab Rocket twister. The legless, lawn chair-sized Ab Rocket pivots with your body as you move forward or backward in a crunching motion or as you twist and turn in the padded swivel seat. 
• Resistance springs offer a perfect amount of resistance. And cushioning massage rollers across the head and back support you as you work out. That means back and neck discomfort and your flab, is a thing of the past! shape up: adjustable head support lets you strengthen your core with virtually no neck strain; padded back support and foam grip handle for comfort; padded seat swivels and twists; 3 types of resistance springs (low, medium and high) for all fitness levels; Ab Rocket twister abdominal exercise chair.