Bender Ball?!
Question:
Bender Ball?
Does it work? How affectivly?
Answers:
I would stick to real exercises and not gimmicks
http://exercise.about.com/od/abs/a/flata...
Does it work? How affectivly?
I would stick to real exercises and not gimmicks
http://exercise.about.com/od/abs/a/flata...