Compact handoperated hydraulic generator model designed for handson physics learning and classroom demonstration. This easytouse science toy shows how mechanical input and hydraulic action can produce electrical output, making abstract concepts of energy conversion clear and tangible for students and teens. Key benefits Teaches energy conversion in a visible way: students can see and feel how hand cranking creates hydraulic pressure that drives the generator. No external power required: operates by hand, so it is safe and convenient for classroom use, home experiments, and science fair displays. Portable and easy to set up: compact size makes it simple to carry between lessons or to store when not in use. Designed for learners: suitable for students aged 6 and up who are exploring basic physics concepts. Features Handoperated hydraulic generator model for practical demonstrations of mechanical to electrical energy conversion. Compact dimensions: approximately 15 x 12 x 12 cm (5.91 x 4.72 x 4.72 inch), suitable for tabletop use. Suitable age: over 6 years old. Color: random selection. Package includes: 1 set Generator Science Model Toy. Use scenarios Classroom demonstration: illustrate energy conversion and the principles of hydraulics and generators during science lessons. Science project and fair: provide a clear visual and mechanical experiment for student presentations. Athome learning: conduct guided experiments to reinforce physics concepts with handson practice. Notes Allow a 1 to 2 cm measurement variance due to manual measurement. Actual item color may vary slightly from images due to monitor differences. This model serves as a practical teaching aid to help students better understand hydraulic systems, mechanical input, and electrical output through direct interaction and observation.