Feature: 1. Multi Purpose: Stirling engine model kit has a wide range of applications, gifts for children's science projects, physics and mechanical learning, classroom demonstration props and so on. 2. Enhance Interest: Heat energy is converted into mechanical energy of the engine, so that we can grasp its low temperature working principle more intuitively and deepen our interest in physics. 3. LED Light: Stirling engine is equipped with an LED light. As alcohol generates heat, the engine will run wildly and generate electricity, and the LED light will shine. 4. Simple Assembly: Stirling engine motor model educational toy is easy to assemble and convenient to operate. 5. Exquisite Gift: Stirling engine motor model educational toy can be given to children as a holiday gift, and they will love this gift. Specification: Item Type: Stirling Engine Model Kit Material: Zinc Alloy, Stainless Steel, Glass Fuel: 95% Alcohol (This Product Contains No Alcohol). Package List: 1 x Stirling Engine Model1 x Alcohol Bottle1 x Alcohol Pad 1 x LED Lamp1 x Magnet