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

Amazon.com Price: $44.99 (as of 15/12/2019 09:32 PST- Details)

Build 20 different models that each teach about force, load, compression, tension and more
Over 285 interchangeable building pieces
Includes 36-page, illustrated experiment manual and assembly guide