The copper zinc strip set is convenient and practical, with excellent texture, and can serve you for a long time without being easily damaged. The craftsmanship can serve you well without breaking easily. This is a very practical copper zinc strip set. Features -Color:Assorted Color -Material:Copper,Zinc -Size(copper strip):4.00X0.90X0.20cm/1.57X0.35X0.08in -Size(zinc strip):4.00X0.90X0.08cm/1.57X0.35X0.03in -These metal strips can make students understand the principles of generation. -Improve children's ability to do things on their own, develop children's imagination and creativity -The copper and zinc sheet kit is lightweight and compact, easy to carry and store. -Suitable for classroom teaching, class study, group experiments, teacher's experiment demonstration, etc. -Made of zinc, and copper, provides sufficient quantity for multiple experiments. Package list: 6 Sheets 6 x Zinc Sheets