A foot pump is a mechanical device that allows users to inflate objects, such as air mattresses or bicycles, by using foot pressure. It typically consists of a pedal connected to a cylinder, which compresses air and forces it into the item being inflated. This hands-free operation makes it convenient for users, especially when they need both hands free for other tasks. Foot pumps are often made from durable materials like plastic or metal and can be portable for easy transport. They are commonly used in outdoor activities, such as camping or cycling, where quick and efficient inflation is necessary.