Rolling Like a Ball with Small Ball is a variation of the original Pilates exercise Rolling Like a Ball. Using the ball facilitates proper execution of the exercise and a deeper contraction of the abdominal muscles. You will tone the absâ¦and have some fun! Please visit http://www.PilatesOnFifth.com (for more info), http://www.UltimatePilatesWorkouts.com (for more videos) and http://www.Shop.PilatesOnFifth.com (for store).