These innovative magnetic clips are a game-changer when installing your classic C7 and C9 Christmas light bulbs and cords. They fit seamlessly onto the base of traditional sockets, making installation on metal roofs and metal fascia a breeze. Plus, they're not just for the holidays - they can be used year-round on magnetic whiteboards to celebrate different seasons at school or in the office. Customers rave about the convenience and versatility of these magnetic clips, making it easier to brighten up any space with classic Christmas lights.