The VAKOOBA Pure Copper Round Bar is made from 99.9% pure copper, providing superior electrical and thermal conductivity, durability, and corrosion resistance. Measuring 12mm in diameter and 300mm in length, this solid round bar is perfect for electrical connections, grounding, bus bars, metal fabrication, and DIY applications. Its smooth metallic surface allows for easy cutting, machining, and shaping, ensuring reliable performance for both industrial and hobbyist use.