How does a Gumball Machine work?

Gumball machine vector image gumball machine coin slot clipart Vector illustration of Snack vending machine Fast food selling equipment Water and sweets Vector illustration of Cartoon gum ball coin operated machine gumball machine slot Coin-Operated Gumball Machine Bank with 85 Gumballs

gumball 7s slot RF 2B338R1–A closeup of a plastic coin slot panel from a coin operated machine with entry and exit slots and button on an isolated background