Made of copper material for high strength, weldability, corrosion resistance and long-lasting durability. The copper tubes can be processed, punched and welded by using professional equipment according to the different lengths and shapes you need. Our copper tubing with a seamless and smooth surface, is available for precision applications or handicrafts. Commonly used in DIY projects, crafts, mechanical components, building models, building decorations, decorative frames, industrial, gardening products and so on. Material: Copper Outer Diameter: 18mm / 0.71-inch Wall Thickness: 1mm / 0.04-inch Total Length: 150mm / 5.91-inch 2pcs x Copper Round Tubes Please allow 0.01mm-0.04mm difference due to manual measurement.