Awesome DIY kit to make a working hydraulic arm - powered by water!
Construct and control your own 18-inch mechanical grabber using the brilliant power of hydraulics. No motor or battery required, all you need is water to power this mechanical masterpiece. Simply follow the instructions to assemble the robotic arm, then operate using the plunger to grab, lift and move a variety of household objects - from lightweight toys to soda cans. An entertaining build for any mechanically-minded kid. Cool!