Features: Unveil the perfect combination of science and mechanics with the Stirling Engine Motor. This exquisite model showcases scientific principles and mechanical structures, captivating science enthusiasts and engineers. Crafted with durable metal material, this Stirling Engine Model is visually appealing and easy to operate. No batteries or power source required, making it a convenient and educational tool for students. Designed for students, engineers, collectors, and science enthusiasts. Whether you have a passion for physics, mechanics, or simply love exploring scientific principles, this model will captivate your interest. Add a touch of fascination to your study room, living area, or office with this Stirling Engine Model. Its intricate designs and craftsmanship make it a great decorative item. Additionally, it can be used for teaching, exhibitions, and science activities, bringing an educational element to any setting. Perfect as a gift or for personal use, this Stirling Engine Model is sure to spark conversations and inspire a love for science. Specifications: Color: Silver Material: Metal Size: Approx. 16x8x12cm/6.3x3.15x4.72in Weight: Approx. 560g Package Includes: 1 Piece Stirling Engine Model note: 1.Please allow 0-1cm error due to manual measurement. make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you