Annealed copper wire- Wiring is one of the most essential techniques a bonsai artist can perfect. To wire well, soft, annealed copper wire makes application easier while also allowing more work hardening potential as the branches are moved and positioned. The annealing process involves heating the copper until it passes its recrystallization temperature. This causes the crystalline structure of the wire to re-align itself, increasing the wire’s flexibility and functionality for application on trees. We source extremely pure copper that is expertly annealed. Includes gauges 6-18.