This is 3 conductors twisted of 20 AWG shielded wires each with PTFE (Teflon) outside insulation. The wires are silver plated copper stranded each with 19 strands. The colors of the three wires are white, red, and black. These are shielded with a silver plated copper braided shield. Then the outside is a PTFE (Teflon) insulation jacket. This is very high quality wire made in the USA. The overall OD of this wire is aprox. 0.1675 inch (4.25mm). I Will ship Worldwide. This is a 10 foot length of wire. If you buy more than one I will ship as a continuous length.