... conductor,American standard bare copper stranded conductorProduct DescriptionOfc-Ofc Oxygen Free Copper Speaker Cable Conductor: Ofc-ofc(oxygen free copper) Insulation: Chemical resistant, moisture ... , purple.ItemsOfc tinned Ofc speaker cableConductor:Ofc-ofc(oxygen free copper)INSULATIONChemical resistant, moisture resistant, soft PVCCOLORansparent clear, red, blue, yellow ...