Description The copper zinc electrode strip set is convenient and practical, with excellent texture, and can serve you for a long time without being easily . The exquisite craftsmanship can serve you well without breaking easily. This is a very practical copper zinc electrode strip set. Features -Color:Golden and silver -Material:Copper,Zinc -Size:9.70X0.30X0.05cm/3.81X0.12X0.02in -Through interesting fruit battery science experiments, let students explore and understand the mysteries and improve their hands-on ability. -Can help students to understand the principle of fruit power generation and electricity. -It can create children's imagination, improve observation, increase scientific knowledge, and cultivate a hobby of scientific invention. -Easy to carry for teaching, learning, presentation, etc. Creative gift for children to learn electricity. -Special design and it is in fine craftsmanship. It is the best replacement for your old, broken one. Package list: 5 x Copper Sheets 5 x Zinc Sheets