Southwire 22968217 50-Feet 12-Gauge Stranded Thermoplastic, High Heat Resistant Nylon Jacket THHN Multi-Purpose BuildingWire, Green 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.