This Japanese “Cayuca” (#12 – 2.6 mm) copper wire is designed for bonsai wiring that requires stronger support. Thanks to its composition of pure copper (99.99%) and its specific annealing treatment, it offers an excellent combination of initial flexibility and progressive rigidity.

After application, the wire hardens over time, allowing for long-term shaping of thick or difficult-to-form branches. It is particularly suitable for conifers and structures requiring long-term shaping.

Its dark shade allows for discreet visual integration onto the tree, for a more natural look. Its 200g format is ideal for targeted work or hobbyists who want to work precisely on medium-sized bonsai.