30pcs Zinc Copper Electrode Strip Rods, for DIY Fruit Battery Power Generation Experiment Materials, 15pcs Zinc 15pcs Copper bestsellers_healthUK_Sep2023 weather-resistant seals to glass

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further exposure should be in 10 sec bursts

it is magnetic enough

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30pcs Zinc Copper Electrode Strip Rods, for DIY Fruit Battery Power Generation Experiment Materials, 15pcs Zinc 15pcs Copper bestsellers_healthUK_Sep2023 weather-resistant seals to glass30pcs Zinc Copper Electrode Strip Rods, for DIY Fruit Battery Power Generation Experiment Materials, 15pcs Zinc 15pcs Copper Product Features Nickel anode: zinc sheet suitable for classroom teaching, class study, group experiments, teachers experiment demonstration, Science experiment kits: zinc copper anode sheet these copper sheets and zinc sheets are the necessary materials for fruit battery experiments. Fruit power kit: purity copper electrode