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Includes: Over 100 parts! Screwdriver. Convenient instructions. Smithsonian Institution Motor Works. See related categories of science kits, science toys, and 內容說明: Much more than a model, the Smithsonian Motor Works model engine kit helps educate children about mechanics through hands-on assembly of realisticBuild a Working Model of a 4-Cylinder Engine. Valves Rock, Spark Plugs Fire, and Pistons Drive Crankshaft. Battery Operated Moving Parts and Lights. Includes 35 Smithsonian Motor-Works Model Engine · Four-cylinder model engine parts · Valves rock, spark plugs fire and pistons drive crankshaft. Find many great new & used options and get the best deals for *New & Sealed* Smithsonian Motor-Works 4-Cylinder Engine Model Kit at the best online prices The explanations in this manual will help you understand how the engine The Motor-Works model shows the basic parts of a four cycle internal combustion The engine is fun to assemble when you have all the parts needed. My recommendation is verify that all parts are included before starting the project. The engine come with a nice poster (see pictures) with one side an explanation and on the over side the instructions, in tiny bad prints. Most kids under 12