Copperhead – Tracer Wire, Orange, #12 AWG (0.0808” diameter) fully annealed, high carbon 1055 grade steel, high strength solid copper-clad steel conductor (HS-CCS) rated at 30 volts, insulated with a 30 mil, high-density, high molecular weight polyethylene (HDPE) insulation rated for direct burial use at 30 volts. 2500ft spool