Pathfinders Hydraulic Machines 4-in-1 Wooden Kit (Cherry Picker, Platform Lifter, Excavator, Scissor Lift)

Product Description Fun for Future Engineers -- Hands-on construction and creation of four simple machines is a fun introduction into building and the mechanics of hydraulic machines. -- Using all pre-cut pieces, glue, and simple instructions, you can make a Platform Lifter, Scissor Lift, Cherry Picker, and Excavator. -- The Platform Lifter provides an excellent example of how we use technology to move people and materials around. -- The Scissor Lift uses the same principles and construction that is common to industrial scissor lifters. -- The Cherry Picker is similar to the ones often mounted on truck beds to steadily lift people and parts to great heights. -- The Excavator kit uses first and third class lever like the ones used in trucks at most construction sites. -- Each working model uses water instead of hydraulic fluid. No batteries are needed to power these models. -- Recommended for ages 8 and up. From the Manufacturer The simple machine series is designed to introduce hydraulics and simple machines in a hands-on manner. The models in this 4 in 1 multipack teach children about howl ever and linkages work. Once made, the models may inspire kids to design machines of their own, and make connections with the engineering of the full sized machines we see on building sites.