OK, people are really obsessed with getting abs. Case in point: another contraption designed to target your abdominals, because things like planks, crunches, and V-ups apparently don't do a good enough job. The Ab Circle also claims to provide a good cardio workout (?), like a "treadmill for your abs," whatever that means. It's tough to believe that a device could top the Shake Weight or Flex Ball for sheer hilarity of the motion required to use it, but... yes, this does it.