Explore the incredible story behind the power of liquids. Discover the history and science behind hydraulics and find out how it is used to steer cars, dig holes, lift heavy loads, and even scare you silly! This box set features an informative and brightly illustrated book telling you everything you need to know about Hydraulic Science plus everything you need to build your own hydraulic powered digger.

Includes 48 page book, 111 model pieces, 4 plastic syringes, and 2 plastic tubes.