Description: Material: Crafted from pp material, this physical experimental equipment is designed to withstand regular use in educational settings, ensuring long-lasting durability and reliability Product Size: With dimensions of 31cmx13cm, this hydrogen-oxygen fuel cell demonstrator is compact enough to fit comfortably on a desk or lab table while still being large enough to clearly display its functions Educational Tool: This hydrogen-oxygen fuel cell demonstrator serves as a educational instrument, making it ideal for classroom demonstrations and hands-on learning experiences Ideal for DIY Science Projects: Suitable for DIY science projects and experiments, this kit encourages students hands-on learning and engagement Package Includes: The experiment set contains all the necessary materials to conduct a variety of experiments that demonstrate the theorem's practical applications, ensuring long-last use in classroom or home settings Specification: Material: PP Size Chart: 31cmx13cm/12.20inchx5.12inch Package Includes: 1 Piece Hydrogen-Oxygen Fuel Cell Demonstrator Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.