A foot pump is a mechanical device used to inflate objects like tires, sports equipment, or air mattresses. It operates by using the pressure generated from stepping on a pedal, which pushes air into the item being inflated. Foot pumps are often portable and can be found in various sizes, making them convenient for home or outdoor use. These pumps typically consist of a base, a pedal, and a hose connected to a nozzle. Some foot pumps may also include a pressure gauge to help users monitor inflation levels. They are a practical alternative to electric pumps, especially in situations where electricity is not available.