@jujujg5: The hula hoop is the king of waist slimming. It doesn't hurt your waist or knees. You can keep it up while binge-watching your favorite shows. Just do it for 20 minutes every day for 2 to 4 weeks. You'll come back to thank me. #HomeExercises#HulaHoop#SweatOffCalories#SlimTheWholeBody#TightenAbdominalMuscles