DURABLE, REUSABLE BUILDING SYSTEM: Combine and reconfigure the components into fun, functional models, including a tightrope walker, elevator, crane, windmill, all-wheel drive ATV, and more! THE SCIENCE OF MACHINES & VEHICLES: Kids ages 8-14+ get an introduction to mechanical engineering through 20 hands-on building projects and 22 supplemental experiments. INTRODUCTORY KIT PACKED WITH EDUCATIONAL VALUE: Through building projects and experiments, you’ll learn about forces, gravity, weight, simple machines, storing and converting energy, momentum and gears, physics in the solar system, and more!