This compact water turbine model is designed for physics and mechanical teaching, laboratory experiments, desktop demonstration, and gift presentation. It clearly shows the structure and working principle of a water turbine and lets students observe how flowing water is converted into rotational motion and mechanical work. Key benefits Teaches core concepts: Demonstrates water flow, impeller action, transmission of torque, and conversion of hydraulic energy into mechanical work. Practical and visible: All major parts are exposed so students can see how each component contributes to turbine operation. Easy to use: Simple assembly and straightforward operation make it suitable for classroom and lab demonstrations. What is included and how it works Components: water tank, water guide, impeller, transmission shaft, casing transmission wheel, rubber plugs, feet, and related fittings. Operation: Assemble the model and place it horizontally in a larger sink or basin. Fill the sink with clean water and remove the rubber plug. Flowing water travels through the guide, strikes the impeller, and causes the transmission shaft and wheel to rotate. This rotation can drive a connected working element, illustrating mechanical output from hydraulic input. Function and compatibility Function: Demonstrates turbine structure and working principle, shows real time conversion of water flow into rotational motion and mechanical output. Compatibility: Designed to be used with a standard sink or basin for water supply. Rubber plugs allow controlled discharge of water. Placement: Intended as a tabletop model for demonstration, laboratory experimental teaching, or as a desktop display. Usage scenarios Classroom demonstration: Show students how impeller geometry and water flow direction influence rotation and torque during a live lesson. Laboratory experiment: Use the model for handson experiments to measure rotational speed, observe transmission behavior, or compare different flow conditions. Display and gift: Use as an educational desktop decoration or a clear physical aid when explaining basic fluid mechanics and energy conversion. Additional notes Assembly is required and the model should be placed horizontally in a larger sink or basin during operation. Use clean water for demonstrations and ensure the rubber plug and feet are secured before operation. The model is intended as an educational and demonstration aid to visualize turbine principles and mechanical transmission.