Southwire 20493301 Series Building Wire, Black Sheath, 6 AWG Wire, 1-Conductor, 500 ft L, Copper Conductor, StrandedSouthwire Building Wire, THHN, Wire Size: 6 AWG, 500 ft L, Number of Conductors: 1, Strands per Conductor: 19, Conductor Material: Copper, Conductor Insulation: PVC, Stranded Solid: Stranded, Sheath Material: Nylon, Sheath Color: Black, Sheath Diameter: 1 4 in, 600 V, 65 A, Operating Temperature: 194 deg F Unit: L FT UPC: 032886231537 Model Number: 6BK STRX500