The affordable Pneumatic Power construction kit playfully teaches the basics of pneumatics and demonstrates the functioning of pneumatic valves and cylinders through realistic models. Air is manually pumped into an air reservoir. By operating the hand valves, the compressed air flows through the hoses into the pneumatic cylinders. In addition to an excavator, four other models can be built. Educational information on the topic of pneumatics is available online for young inventors. Includes 2 pneumatic cylinders, a pump cylinder, 2 hand valves, an air reservoir, and a check valve.