EHVYBDX Physical Experiment Equipment Simple Circuit Closure Experiment Box Concatenation in Parallel Light The Small Bulb Experiment Equipment Children's Assembly Science Physical Experim

Material: plastic + iron Name: Simple circuit experimental device. Features: Physics lab instruments for verifying and exploring physics experiments. Experiment goal: This set can build a simple series circuit and parallel circuit, so that children know exactly how a light bulb is lit; master basic circuit common sense, and stimulate the desire to solve problems in the process of hands-on experiments. If you encounter any problems during the transaction or use, please email me and I will solve it as soon as possible., Manufacturer: EHVYBDX