How Good Is It?  
6 Second Abs is up to 15 times more effective than a regular crunch.

It's well known that regular crunches use gravity as resistance, but the 6 Second Abs resistance bands provide a more effective workout. 6 Second Abs can also target specific muscle areas, while crunches done on the floor are limited.
15 Times More Effective
15 Times More Effective
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  How It Works How It Works
  Perfect Form and Tempo Perfect Form and Tempo
  Adjustable Resistance Adjustable Resistance
  A Complete Workout A Complete Workout
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  An Up-Close Look An Up-Close Look