CISON V8 Engine LS-52 Small-block 52CC 1/5 Water-Cooled 4-Stroke 8-Cylinder Gasoline IC V8 Engine Model Kit that Works - Build Your Own V8 Engine  ...

Inline 6-Cylinder Engine Model Kit, Transparent Internal Combustion Engine DIY Assembly Kit with Motor Drive, Moving Pistons and LED Effect, STEM M...

TECHING Vintage First Generation Three-Wheel Automobile Model, Metal Mechanical Electric Car, DIY Assembly Kit, Educational Collectible Kit (430+ ...

ENJOMOR 3D Printed Inline Four-Cylinder Engine Model Kit, Electric Mechanical Assembly, Simulated Internal Combustion Engine STEM Science Display, ...

ENJOMOR 3D Printed Radial Five-Cylinder Engine Model Kit, Mechanical DIY Assembly STEM Aviation Engine Display with LED Light Effect, Creative Desk...