Banana plugs are a type of electrical connector commonly used to connect wires to audio equipment, speakers, and other electronic devices. They have a cylindrical shape with a metal tip that resembles a banana, which allows for a secure and easy connection. The design helps prevent accidental disconnection and ensures a reliable electrical connection. These plugs are typically made of metal and are often gold or nickel-plated to enhance conductivity and resist corrosion. Banana plugs can be used with binding posts or speaker terminals, making them a popular choice for both amateur and professional audio setups.