A back box, also known as a junction box or electrical box, is a container used to house electrical connections and wiring. It is typically made of metal or plastic and is installed within walls, ceilings, or floors. The purpose of a back box is to provide a safe and secure enclosure for electrical connections, protecting them from damage and preventing any potential hazards. Back boxes are commonly used in residential, commercial, and industrial settings for various electrical installations, such as switches, outlets, and light fixtures. They are an essential component of electrical systems, ensuring proper organization and protection of wiring connections.