This is a Telefunken unplated pure copper cable from the 1950s. It's 2.2mm, which is equivalent to AWG11 or 12. How about using it for speaker cables? You can feel the rich mid-low frequencies unique to pure copper. The price is per meter. If you need several meters, please inquire via the question box. From 2 meters onwards, it will be +¥1000/m.