Copper Bonsai Wire
Copper bonsai wire is hand-coiled and kiln-annealed in the USA. The wire is solid, soft-drawn, and 99.9% pure. This wire is very malleable, with no hard spots, making for an easy application. As the wire is applied to your tree, it work hardens, giving the wire greater holding strength over aluminum.
You can read up on how to wire a bonsai tree in this article. Bonsai Wire: How To