The VAKOOBA Pure Copper Round Bar is made from 99.9% pure copper, offering superior electrical and thermal conductivity, durability, and corrosion resistance. With dimensions of 40mm diameter and 150mm length, this solid round bar is perfect for electrical connections, grounding, bus bars, metal fabrication, and industrial use. Its smooth metallic surface allows for easy cutting, machining, and shaping, ensuring reliable and professional results for both industrial and hobbyist purposes.