The L-clips for Christmas lights are perfect for installing C7 or C9 Christmas cords onto 1-x boards and fascia. These clips can be easily attached with screws or nails (not included) and simply clip onto the cord. They are designed to work with 18 AWG cords and are great for use on porch railings or any other location where a secure attachment point is needed. These L-clips provide a clean and professional look to any holiday lighting installation.