Southwire's Romex SIMpull Type NM-B cable is manufactured as 2, 3, or 4 conductor cable, with a bare ground wire. Copper conductors are annealed (soft) copper. Stranded conductors are compressed stranded. Conductor insulation is 90 degC-rated polyvinyl chloride (PVC), nylon jacketed. Southwire's Romex SIMpull Type NM-B is designed for Easier Pulling, Resulting in Easier installation. The cable jacket is color-coded for quick size identification; White - 14 AWG, Yellow - 12 AWG, Orange - 10 AWG,and Black - 8 AWG and 6 AWG.