What are those tubes called that supermarkets use to return change? How do they work?

You must have seen them although they are less common nowadays. The cash is put into a plastic bottle which is then inserted into a vertical tube. Something then causes the bottle to be whisked away, presumably to the cash office.What are those tubes called that supermarkets use to return change? How do they work?
These are still used in the drive-through of banks. The operate by air vacuum.What are those tubes called that supermarkets use to return change? How do they work?
There called shuttles and they are operated under an air vaccum.
theyr called shutes , i think air pressure pushes them down
vacuum tubes

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