This copper strip and zinc strip set is a must-have for any science experiment or DIY project. The kitmakes it easy to conduct experiments and create your own batteries. The copper and zinc materials ensure stable performance, and the kit is reusable and cost-effective. With its versatility, this kit can be used for a wide range of applications. Features -Color:Assorted Color -Material:Copper,Zinc -Size(copper strip):4.00X0.90X0.20cm or 1.57X0.35X0.08in -Size(zinc strip):4.00X0.90X0.08cm or 1.57X0.35X0.03in -These metal electrode strips can be used to build DIY fruit batteries, great for teaching, learning, presentations, and more -The metal electrode strip set is a great tool to help motivate kids to learn about physics and chemistry. -Parents can carry out interesting fruit battery science experiments with their children. Cultivate childrenand 39 s interest in science learning -Simple and easy to use, improve the fun of the classroom, studentsand 39 practical ability, and stimulate studentsand 39 interest in learning. -Made ofcopper and zincmaterial, exquisite craftsmanship makes them not easy to bend or break.Packing list6 x Copper Sheets 6 x Zinc Sheets