The As Seen on TV AB Circle Pro Machine gets you off the ground and targets your entire core for a firmer, flatter stomach. It is a fun and easy to use trainer. The exercise machine works like a treadmill for your abs. This trainer is great for those who would like to get flatter and firmer abs without having to do crunches and sit ups. The ab workout machine works on your upper, middle and lower abs, giving your entire core a thorough workout that burns away stomach fat in one simple motion.