1、Exquisite Craftsmanship: This helicopter model is meticulously crafted with attention to detail, resulting in a highly lifelike and realistic appearance that truly captivates. 2、Micro Engine Technology: Incorporating advanced physical air energy external combustion technology, the Stirling engine model allows for a fully functional power system, offering an interactive experience like no other. 3、Durable Materials: Constructed from a combination of premium stainless steel, aluminum alloy, brass, and walnut wood, this Stirling engine model showcases exceptional durability, reliability, and long lasting value, making it a coveted collectible item. 4、Simple and Educational: With its easily understandable structure, this Stirling engine model serves as an ideal tool for educational displays and DIY projects, inspiring hands on learning and fostering scientific knowledge and skills. 5、Unique Birthday Gift: Perfect for aviation enthusiasts, tech enthusiasts, and dedicated model collectors, this stirling engine helicopter model stands out as a truly exceptional and unique birthday gift option.
Specification
Item Type: Stirling Engine Helicopter Model Kit
Material: Stainless steel, aluminum alloy, brass, walnut wood
Weight: Approx. 480.00g/16.93oz
Product Size: Approx. 25x14x13.5cm/9.84x5.51x5.31in
Applicability: Suitable for children's scientific projects, physics mechanics learning, classroom demonstrations, etc.
Package List
1 x Stirling Engine Helicopter Model Kit (26 Pieces Parts Total)
Note
The model that was just operated is hot and should not be touched. Do not add any lubricant to the cylinder piston connecting rod. If there is dust, gently wipe it off with a tissue or cotton cloth.

Products received faulty, damaged, or not as described are eligible for a return, refund, or replacement in accordance with local consumer laws. We are committed to ensuring all products meet the standards of quality and reliability expected by our customers. Please note that we do not accept returns or provide refunds for change of mind. We encourage you to carefully consider your purchase to ensure it meets your needs and expectations.