Our high purity zinc rods are made of 99.99% pure zinc metal, with solid cylindrical structure and smooth uniform surface. Each rod has a standard size of 4"(102mm) in length and 0.39"(10mm) in diameter, with stable performance and consistent quality in each piece. These zinc rods are widely applied in educational projects, classroom practice, electroplating exercises, DIY handmade projects, metal processing hobbies and other daily material uses. The high purity raw material ensures good stability and practical performance for daily and project applications. The package includes 5 pieces of solid zinc rods, which can meet the needs of long-term use and multiple projects. The solid structure is easy to cut, grind and process according to actual needs. Please note that zinc metal may produce a slight natural oxidation layer over time, which will not affect its normal use and performance.