Sell Hot Air Stirling Engine Motor Model Kit Physics Teaching Aids Educational Toys best price

Hot Air Stirling Engine Motor Model Kit Physics Teaching Aids Educational Toys Features: Burning the alcohol lamp for a while, the expansion of air in the tube will work as a medium to run the pistons and flywheel, then the expanding air will becooled in cold chamber. Make physics teaching more intuitive and easier for students to understand. A wonderful gift for your friends, kids and students. Stirling engine model size: 12.5 * 5.3 * 5.3cm/ 4.9 * 2 * 2in. Specifications: Color: Silver Material: Metal Item Size: 12.5 * 5.3 * 5.3cm/ 4.9 * 2 * 2in Item Weight: 154g/ 5.4oz Package Size: 17.5 * 11.5 * 9.5cm/ 6.9 * 4.5 * 3.7in Package Weight: 250g/ 8.8oz Package List: 1 * Stirling Engine