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Great Gizmos 4M Science Museum Propeller Engines



Experience the power generated by these unusual rubber band powered engines Make a propeller
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Great Gizmos 4M Science Museum Propeller Engines
Experience the power generated by these unusual rubber band powered engines Make a propeller sailing boat and a racing car and learn about the science facts that make them work The kit contains two sets of propeller accessories two rubber bands two straw bodies a foam boat hull boat accessories and a set of car accessories along with full instructions

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