This 6-inch (150mm) zinc rod features a sturdy brass terminal for dependable electrical connections. The rod measures 0.5 inches (12.5mm) in diameter and is made from high-grade zinc. The zinc rod is designed for electrochemistry experiments including galvanic cell construction, as well as modern physics demonstrations such as the photoelectric effect. The brass terminal ensures reliable, repeatable electrical connections in laboratory circuits. Suitable for physics classrooms and laboratories studying electrochemical reactions and quantum mechanics principles.