Covered extension cords with outlet boxes consist of flexible electrical cable with an integrated lay-flat cord. They are typically used in high-traffic areas to help minimize tripping hazards and reduce wear to the cord. They have a plug at one end that connects to the power source and a metal outlet box with two receptacles at the other end that devices plug into. They are ideal for use in office and commercial settings where there is heavy foot traffic, such as lobbies, hotels and conventions, and trade shows.