Description This item is manufactured with zinc and copper sheets for durable and long-lasting use. It is easy to carry and can be used for studying, teaching, learning, presentation, etc. Creative gift for children to learn How to use fruits and electrodes to generate electricity. Intuitive experiment with interesting material help to stir students' interest in studying the physics and chemistry. Features - Color: Golden, silver. - Material: Zinc, copper. - Size: 5.50X2.50X0.10cm/2.16X0.98X0.04inch. - Constructed by using high-grade material, ensures it safety and can use it with confidence. - Through interesting fruit battery scientific experiments, parents can accompany your children to play and cultivate their science learning interest. - Use along with copper electrode strip and pin-type wires, to build your DIY fruit battery. - Easy to carry for teaching, learning, presentation, etc. Creative gift for children to learn electricity. - Intuitive experiment with interesting material help to stir students' interest in studying the physics and chemistry. Packing list: 10 x Copper Sheets10 x Zinc Sheets