The Mega Cyborg Hand Stem Experiment Kit by Thames & Kosmos is a gear building set featuring 203 pieces made of plastic and metal. Designed for ages 7 and up, this STEM-themed kit caters to young builders interested in creating intricate cyborg hands. Inspired by Robotech, this set from Japan encourages hands-on learning and creativity through a detailed educational experiment process. Perfect for those looking to explore the world of engineering and robotics, this kit provides hours of fun and enlightenment for aspiring engineers.