Southwire 22965851 50-Feet 12-Gauge Stranded Thermoplastic High Heat Resistant Nylon Jacket THHN Multi-Purpose BuildingWire, White Type THHN, themoplastic insulation, high heat resistant, nylon jacket single conductor wire Abrasion, moisture, gasoline, and oil resistant jacket Annealed (soft), compressed stranded, copper conductor 600-Volt Made in the U.S.A.