Are you looking for a professional and practical fruit battery project kit? , ! Our experimental equipment fruit battery must meet your needs. This potato battery experiment kit is made of copper, iron, zinc, plastic material, and sturdy for use. Fine workmanship ensures practicality and durability. Features -Color:Assorted Color -Material:Copper, iron, zinc, plastic -Size:7.50X7.00X5.00cm/2.95X2.75X1.97in -Size:10.50X3.50X1.20cm/4.13X1.38X0.47in -This battery experiment equipment is perfect for anyone interested in energy research. -The copper, iron, and zinc sheet power generation materials can be used for battery experiments and energy research, making it an essential tool for students and researchers alike. -The well-designed plates ensure efficient battery reactions and stable current output, making it easy to use and perfect for conducting experiments and research. -Sturdy materials used in manufacturing make it and reliable, ensuring that it will last for years to come. -It has a reasonable design, which can well improve the performance and easily meet your needs. Package list: 1 Plate 1 x Iron Plate 1 x Zinc Plate 1 x holder case 2 x wires