Air Stirling Engine Motor Model Fluid Dynamic Physics Experimental Model Educational Science Toys

100 Brand New and High Quality! Material:Metal Size:16*8.7*7.3cm/6.29*3.42*2.87in Color:Gold Package Included: 1PCS Note: 1. Please note that the photo does not show actual size, please refer to Description for size details. 2. Please allow 5-10mm differences due to manual measurement, thanks. 3. Due to the difference between different monitors, the image may not reflect the actual color of the item. The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.