"21 Gauge Mag Wire (Cryo Treated Version)

The CCC 21 awg is 21 gauge, Continuous Cast Copper premium internal hook up wire (magnet wire). It has EC solid stranding, red soldron insulation and is available in clear only. 125m crystal length, 99.9999% pure."

I'll get it from Take Five Audio (you can google them) since they are close to where I live. I do not have any affiliation with them. I'm sure you could order the same stuff from Micheal Percy Audio in the States.

Cheers.
FM