Simply put, a change machine within the US market will generally accept bills and dispense quarters, dollar coins, or tokens. Bill breakers are made to break larger denomination bills into smaller bills. For example, you'd use a change machine to break a 5 dollar bill into quarters and a bill breaker to break a 20 dollar bill into 5 ones and 3 fives. There is a third option that is a bit of a hybrid approach and it allows you to get the best of both worlds by installing a bill recycler on a change machine. All of our Triad 400 series machines come with MEI bill recyclers and can be configured to do this out of the box. Adding a recycler greatly reduces the number of quarters you'll need to hold and give out and will allow you to give a combination of quarters and bills back when someone interests a higher denomination like a 20 dollar bill. MEI recyclers work by recycling or saving a certain denomination as it's inserted into the machine with 5's being the most common. Example configuration: Triad 400 Series that recycles 5's and gives a maximum of 5 dollars in quarters. With this setup, your customer would receive the following back in change for each bill inserted: 1 dollar bill (dispenses 4 quarters), 5 dollar bill (dispenses 20 quarters) and saves/recycles the 5, 10 dollar bill (dispenses 20 quarters and one 5 dollar bill), 20 dollar bill (dispenses 20 quarters and three 5 dollar bills). Each time a 5 inserted into the machine is recycled and saved in a separate stacker. Each recycler stacker holds up to 30 bills and can last quite a long time since they are replenished as they come in.