good for educational science kits, the DIY fruit battery copper zinc sheets . These copper and zinc sheets are designed for creating fruit batteries, providing students with a practical understanding of electrochemical reactions. By using these sheets in experiments, students can observe how electricity is generated and learn about the components of electric circuits. Features -Color:Assorted Color -Material:Zinc, Copper -Size:5.00X2.00X0.10cm/1.97X0.79X0.04in -Educational value: good for teaching experiments, helping students to understand battery principles and electrochemical knowledge through practical activities. -Userfriendly: the copper zinc sheets are designed to be userfriendly, enabling students to create fruit batteries easily. -Interactive and fun: rich experimental content ensures that children learn science in an interactive and enjoyable way, boosting their interest in learning. -Inspires innovation: making fruit batteries fosters children's creative thinking and motivates them to explore additional scientific experiments. -Wide range of uses: suitable for educational settings, research facilities, and home , making it ideal for various educational and scientific activities Package list: 8pcs Experimental copper and zinc sheets (4pcs each of copper and zinc)