This particular part is a black 18/3 low voltage outdoor cable from the SJTW (heavy-duty oil/water resistant) series from Misc. It is a three-conductor cable with a 10-gauge rating, which is thicker and more resistant to damage than thinner gauges. The low-voltage rating makes this cable suitable for use in outdoor installations where the voltage is below 600 volts. It is the perfect solution for running outlets, lamps, and other fixtures in exposed locations such as decks, patios, and gardens. The black outer PVC jacket is oil and water-resistant, effectively protecting the inner conductors from environmental damage.