With Engino's Mechanics Cams & Cranks set, learn how you can transmit power using Cams and Cranks and how they can be used to convert reciprocal to linear motion. Discover how these mechanisms are crucial elements of many machines even though they are not considered as "simple machines". Build 8 working models such as a fishing crane, an oil pump, a moving figure, a moving bridge, a sewing machine and a flying eagle. You can find easy-to-follow building instructions for all models either online or in the booklet included. The booklet provides detailed explanations of the different scientific principles applied and incorporates innovative experimental activities for hands-on learning. A quiz section is also available to challenge your newly acquired knowledge! conduct thorough experiments and discover - how the handle's position affects force and speed - how the crank's position affects force and speed - how to switch between different types of motion by using cams. For ages 8 and up. WARNING: CHOKING HAZARD - Small Parts. Not for children under 3yrs.