Remember the times, a penny would buy you a big gumball , well you can adjust this machine to fit that gumball, up to 1/2 inch or less or your favorite candies such as m&m's, skittles, jellybeans...right now I have regular gumballs in mine and I chose to use pennies, since I have a penny jar next to it...or go inside the mechanism and change out to free spin...for which it includes instructions fo