Do you want educational experiment DIY fruit battery for pupil? 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 experiment to understand the relationship between . Features -Color:Assorted Color -Material:Zinc Alloy,Copper,Plastic -Size:4.00X1.00X0.20cm/1.57X0.39X0.08in - DIY fruit battery can help to train pupil's observation capability, thinking and analytical skills. - Made of zinc alloy material, funny and creative, simple and convenient to use for student. - Happy and easy to learn, the science educational DIY fruit battery can exercise pupil's hand-on ability. - Students can learn scientific knowledge by playing the DIY fruit battery, educational and useful. - Nice students educational experiment fruit battery kit, let student have great fun from it. Package list: 1 x Set of Science Toys