New Stemnex Flat 6 Model Engine STEM Toy Building Kit - Brand New - $100 (Surrey)

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condition: new

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Selling a brand new Stemnex Flat 6 Model Engine science kit. This retails for over $110 online. It is a premium educational building set with over 320 parts that builds a fully working, motorized replica of a 6-cylinder car engine with real mechanical movements, LED spark plugs, and realistic engine sounds., Great hands-on learning activity for preteens, teenagers, or car enthusiasts aged 12 and up Condition: Brand new in box with factory seals intact.

Accepts cash, trades, e transfer.

post id: 7989429603

posted: 2026-10-24 17:56

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New Stemnex Flat 6 Model Engine STEM Toy Building Kit - Brand New -...

Selling a brand new Stemnex Flat 6 Model Engine science kit. This retails for over $110 online. It is a premium educational building set with over 320 parts that builds a fully working, motorized...