Socket inserts, also known as plugs, are electrical components that are inserted into a socket or receptacle to provide power to an electrical device. They are typically made of plastic and metal and come in a variety of shapes and sizes. Socket inserts are used to connect electrical devices to a power source, such as a wall outlet or a generator. They are also used to connect two pieces of equipment together, such as a computer and a printer. Socket inserts are essential for providing power to many types of electrical devices.