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Teching Mini Electric Single-Cylinder Engine Assembly Kit: Vintage Engine Model for Educational Collection


DIY Model Engine Combustion Kit – STEM Science Education 4 Cylinder Engine Assembly


V4 Engine Model Building Kit – Build and Learn with Ed-Q – STEM Educational Toy


Haynes L4 Engine Model Kit: Build and Run Your Own Transparent Engine Simulator


4-Cylinder Car Engine Building Kit | Assembled Engine Model | DIY Kit for Adults


Airhead Flat Twin Model Engine Kit – DIY 2-Cylinder Assembly for BMW Enthusiasts


12-Cylinder Brushless Metal Engine Model with EM Tech for RC 1/10 Cars and Boats


DIY 3D Colorful Butterfly Flying Bionic Dynamic Model Assembly Kit for Kids, Teens, and Adults


TECHING Retro RC Tractor Model Assembled – Like New


Brushless V6 Double-Piston Electric Motor for 1/10 RC Cars and Ships (Metal Construction)


DIY Engine Model – Metal Assembly Single-Cylinder Engine Learning Aid (Assembled) – Like New


TECHING Illuminated Rotating World Globe for Kids with Stand, High-Clear Readable Map, Educational STEM Toy Lamp Light Up Night Light LED Decor


TECHING Assembled Full-Metal Steam Car Engine Model Gift Collection – Used (Excellent Condition)


V6 Electromagnetic Engine Model with 6 Cylinders, High-Speed Car Engine Functioning Concept, STEM Educational Toy


V8 Electromagnetic Engine Model for Model Vehicles


V6 Electormagnetic Motor Engine Model Kit with Hexagon Cooling Fans for 1/10 RC Cars, Science Projects, and Educational Demonstrations