Construct & create moving a robotic hand that comes in kit form, meaning you have loads of fun building it and even more fun playing with it. The hydraulic cyborg hand simulates the movement of a human hand using hydraulic power for mechanical transmission without electricity. It allows every finger joint to adjust at different angles for a precisely closed fist or open palm. You can use different grip techniques to hold a variety of items, such as bottles, balls or tiny screws, making it an interesting and fun challenge.The 4 fingered hydraulic hand is easily manipulated by your fingertips - just push and pull to activate the hydraulic transmission system. Made from 203 easy-to-assemble pieces and uses hydraulic power to move. Use the adjustable settings and watch how the system is able to move each finger.Powered by hydraulics alone. No batteries or motor is needed! Loads of fun, but it’s also a fantastic STEM toy that teaches you about mechanics and engineering. Contains: Hydraulic Cyborg Hand KitAge: 10 Years+Batteries: N/A