Features: Experience the green energy with our Saltwater Power Fan Set, which generates electricity using saltwater instead of batteries, providing a environments friendly power solution. Crafted from light weight plastic, this educational science set ensures safety and easy assembly, enhancing hands on skills and logical thinking without complex tools. Ideal for students in classrooms and at home, this physics teaching tool sparks interest in renewable energies and scientific exploration for youngly learners. Perfect for school labs, family handcraft projects, science fairs, and competitions, offering a interactive demonstration of green energy concepts in various education. Through practical experimentation, it visually teaches electrolyte conduction and energy transformation principles, making physics lessons engaging and memorable. Specifications: Materials: Plastic Color: As The Picture Shows Package Weight: approx.70g Size: Mixed Size Package Includes: 1Pc Saltwater Power Fan note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!