Crafted from copper and zinc, these strips are essential for various electrochemical experiments. Their sturdy construction and precise dimensions make them suitable for creating efficient fruit batteries. These strips are for students and hobbyists looking to explore the principles of electrochemistry in a practical and engaging way. Features -Color:Assorted Color -Material:Zinc, copper -Size:4.00X1.30X0.10cm/1.57X0.51X0.04in -Efficient power source: copper zinc strips can rapidly generate electricity using fruit, ensuring a consistent power supply -Learning: for fruit battery experiments, encouraging children's curiosity in science and enhancing their practical abilities -Selfsufficient: constructed from copper and zinc materials, eliminating the need for an external power source -Userfriendly design: features a for connection -Wide application: ideal for educational settings, home learning, and science fairs Package list: x copper and zinc sheet