Cable wire is made by 6N 99.9999% oxygen free copper (OFC). Copper is made by 504 strands count of 6N individual copper wires. Cable size - 2 x 10AWG (4.0mm squared) Conductor - 504 x 0.1mm Diameter of cable: 15mm Connector: 8 pieces of Nakamichi 24K Gold plated banana plugs. Color coded: Black and Red, for easier recognition.