Generator Single Cylinder Stirling Engine Toy Balance Single-Cylinder Hot Air Model Teaching Toy

Label:Yes shipping list:1set engine model applicable age: 13+y name: stirling engine model toy material: metal, etc size: 16.5*9.5*13cm(6.50*3.74*5.12in)

notes: 1. please allow 1-2cm(0.39-0.79in) difference due to manual measurement, thank you. 2.due to the difference between different monitors, the image may not reflect the actual color of the item.