Natural Science Industries Smithsonian Motor-Works Visible 4-Cylinder Engine Kit

Estimated Shipping: 2-3 Business Days

$47.95 $59.95
SKU: NSI-49013

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Estimated Shipping: 2-3 Business Days

Includes:

  • Watch the spark plugs fire
  • Watch the valves open and close
  • See how the pistons fire
  • Watch the belts and fan turn
  • Detailed instructions
    Uses 2 AA batteries - Not Included

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