When doing an exercise, you need to be sure that the work you’ll do is fitting for the target muscle.
So many "butt" workouts have exercises built in that are missing the mark. I've seen them focused on lower back and the hamstring; although important areas, that is not the "BUTT area".
The K7 Booty Blaster Challenge is FOCUSED on the proper glute (butt) muscles. You will instantly feel and see the difference.