These copper and zinc strips are essential components for any science enthusiast's toolkit. Their materials and precise manufacturing ensure reliable results in various electrochemical experiments. Ideal for classroom use, these strips provide a practical way to demonstrate the principles of electricity generation and the behavior of different metals in a circuit. Features -Color:Assorted Color -Material:Zinc, copper -Size:4.00X1.30X0.10cm/1.57X0.51X0.04in -Quick power generation: utilizing , copper zinc strips rapidly produce electricity, providing consistent power output -Educational value: for fruit battery experiments, it engages children in science and enhances their abilities - : made from copper and zinc, these do not need an external power source -Easy to connect: features a design for convenient wire attachment -Versatile applications: ideal for school labs, home education, and science exhibitions Package list: 24 and zinc sheet