Potato experiment toyIt will be a surprising science toy for your child it is ideal for fun learning to stimulate your toddler's imagination. environment friendlyComes with everything needed to experiment with green energy. Manufacturered by Fdit. Electricity parts includedIncludes digital clock light bulb zinc / copper plates wires etc. Different applicationYou may experiment with different fruit like lemon orange tomato etc. High quality material100% Brand new and high quality.