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: $46.90.Current price is: $40.95.

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