want educational experiment DIY fruit battery for your students? This item will prepare for you, simple and convenient to use, can improve students' hands-on ability, and stimulate students' interest in learning, perfect for home, school use. Comprehensive physical experiment to understand the relationship between physical and chemistry. Features -Color:Assorted Color -Material:Metal -Size:17.00X3.00X0.50cm/6.68X1.18X0.20in - Made of metal material, safe and reusable, it is not easy to damage students due to leakage. - Complete the fruit battery science experiment project with the students to let the students experience the of science. - Cultivate students imagination and hands-on ability, and make students more interested in science experiments. - By completing the fruit battery science experiment project with the students, enhancing feelings. - It can also improve students hands-on ability, increase scientific knowledge, and cultivate a hobby of scientific invention. Package list: 8 x Zinc Plates 8 Plates 6 x Wires 2 x Electronic Watch Movement