Features: 1. 100% brand new and high quality. 2. Made of copper material, more durable in use. 3. The combination of 4 different specifications makes it more practical to use. 4. The wire is flexible to change shape, so that it has a wide-range in application. 5. Great welding rods for jewelry making. Specification: Condition: 100% Brand New Material: Copper Color: As Pictures Shown Diameter: 0.5mm, 0.7mm, 1.0mm, 1.5mm Package List: 4 * Welding Rods