These are the internal wiring materials we also use for repairs. We have carefully selected wiring materials to suit many different guitars and basses, but the ideal wiring materials are few and far between. This is one of the precious wiring materials we have found. The sound quality is high-resolution and transparent, without any strange quirks, and has a natural sound quality with a variety of nuances, leaning towards a good quality with rounded highs. The sound quality is very well-balanced. *This is a stranded wire, but it is a lightly hardened wire.* Even changing only one wire from the volume pot output to the jack will make a dramatic difference. Those who have never tried vintage wiring materials will surely be surprised. Sounds you couldn't hear before will become audible, and sounds that were vague in the depths of the speaker will jump out in front. Please experience the difference from modern wiring materials. The blend of #1 and #2 is also very good sound quality. Please use vintage solder. This is sold by the meter, but if you purchase multiple units, we will send it uncut. We have received many inquiries about wiring materials, so we are offering a large quantity. Thank you.