This is 25 feet of silver plated copper wire with PTFE insulation. This is 26 AWG stranded wire with 7 strands. This is very high quality mil. Spec. wire made by Thermax. The color is white/blue. The OD of this wire is aprox. 0.0325 inch (0.82mm). This would be great for audio projects, ext. I Will ship Worldwide. This is a 25 foot length of wire, if you buy more than one I will ship as a continuous length.