Southwire 12BK-STRX500 Stranded Building Wire, 12 AWG, 500 ft L, Black Nylon Sheath

Romex Building Wire, THHN, 12 AWG Wire, 500 ft Length, 1 Conductors, Strands per Conductor: 19, Copper Conductor, Thermoplastic Conductor Insulation, Stranded, Nylon Sheath, Black Sheath, 600 V, 20 A, 90 deg C Operating