Fuel dispensers are machines used at gas stations to deliver fuel, such as gasoline or diesel, into vehicles. They typically consist of a pump, a meter to measure the amount of fuel dispensed, and a nozzle that connects to the vehicle's fuel tank. Customers can select the type of fuel they need and pay for it before or after filling up. These dispensers are designed for safety and efficiency, often featuring automatic shut-off mechanisms to prevent overfilling. Many modern fuel dispensers also include digital screens that provide information about fuel prices and promotions, enhancing the customer experience at gas stations.