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Thames & Kosmos Structural Engineering: Bridges & Skyscrapers | Science & Engineering Kit | Build 20 Models | Learn about Force, Load, Compression, Tension | Parents’ Choice Gold Award Winner, Blue

Original price was: $49.95.Current price is: $44.84.
Price: (as of – Details) Do you ever wonder how bridges span huge distances and how skyscrapers stay standing? Structural
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