John and UMM-USA have been a godsend for those that like to scratch build by supplying tools and parts to make life easier for all of us as well as giving us access in the US to suppliers not as easily found. This selection is three styles of soft lead wiring perfect for ignition harnesses, wiring jets or anything that might need some kind of wiring or plumbing. The sets come in three types- round 0.4mm, half round and flat at 0.4mm.