As early as the third century, people understood the practicality and excitement of pneumatics! This building set teaches the basics of pneumatics in a fun way, showing how components like compressors, pneumatic valves and cylinders, and an exhaust valve work using realistic models, and demonstrating why this technology has existed for so long. It allows young inventors to create exciting adventures at home with their tractor with a tree grapple, front loader, or double rake.