The Essential Gauge for Every Artist. Our 1.5mm Brown Anodized Aluminum Bonsai Training Wire is the go-to choice for shaping primary and secondary branches. Thick enough to provide reliable "holding power" yet remarkably easy to manipulate by hand, this wire is designed for trees that need structural guidance. The matte brown finish allows the wire to retreat into the background, ensuring your tree remains the star of the show while it takes on its new form. With 68 feet of professional-grade wire, you have the strength you need for a complete restyling project.