The complete solution for those who want all technology models in one single box. It contains enough parts to build more than 56 fully functional models (one at a time) and covers the concepts of Simple and Complex machines. Learn about Levers, Linkages, Pulleys, Cams, Cranks, Gears, Screws, Wheels, Axles, Inclined planes and Wedges. Build cranes, cars, airplanes, motorcycles, lifting platforms, tractors, a hand drill, blenders and much more! Experiment with the models to understand how machines actually work, how you can change the speed, convert motion, increase or transfer force and how you can easily move heavy objects. Instructions for all models are included.