Ideal for funny purposes, this iron sheet excellent for teaching of battery physics, used in a variety of science projects, including fruit battery experiments, to demonstrate how chemical reactions can generate electrical project. Features -Color:Silver -Material:Iron -Size:138.00X5.20X0.20 cm/54.23X2.04X0.08in -Hands-on learning: encourage children learn practical science experiment, enhancing their understanding of basic physics and chemistry concepts - Safe and convenient to use: not easy to break or deform, reusable and can be applied for longtime -Environmental awareness: teach kids the importance of recycling and environmental conservation by turning waste fruits into functional batteries -Funny: make learning enjoyable with experiment that vividly illustrates how fruit batteries work -Multiple-use: can be used to DIY simple electronic project, both fun and functional Package list: 1 x iron sheet (100g/piece)