Flame Engine Vacuum Engine Motor Toy Science Education Model Kit Gift Collection

Description: Material: Metal Color: Silvery (Iron Flywheel) Gold (Copper Flywheel) Size:(L)X(W)X(H) 14.5x8x8.5cm /5.71"x3.15"x3.35"(appr.) Features: Brand New and high quality. Made of aluminum, iron, brass material, powerful and durable. Only a small alcohol lamp(without alcohol) you can make it fast rotation and strong power. After the machine is heated, the flywheel starts to rotate. Engine principle is intuitive, educational toys, teaching experimental equipment can effectively cultivate kids' interest in learning can also be used for classroom teaching, more intuitive and easy to understand. It can be a great gift to your families or friends, or a decor in your shelf. Notice: Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures. Package Included: 1 X Engine Model