This video instructs how to use your abs to get a stronger core and a more defined waistline. Work the levels (beginner, intermediate, and advanced) in 2 week sessions and see definite resul... Read allThis video instructs how to use your abs to get a stronger core and a more defined waistline. Work the levels (beginner, intermediate, and advanced) in 2 week sessions and see definite results for awesome abs!This video instructs how to use your abs to get a stronger core and a more defined waistline. Work the levels (beginner, intermediate, and advanced) in 2 week sessions and see definite results for awesome abs!