Budding engineers will be jumping for joy at the chance to build an energetic bouncing robot with an easy-to-use, educational kit. A full-color guide teaches principles of elasticity, potential and kinetic energy, and the spring constant. Use the same parts to build a crawling crab, a kicking machine, a grappler claw and more. At least ten times more exciting than a pogo stick! Brand: Thames & Kosmos. Style Name: Thames & Kosmos 'Jumperbot' Experiment Kit. Style Number: 754222.;Big Boys > Toys/Games > Other;Includes materials and a 24-page full-color manual for building 7 machines;By Thames & Kosmos; imported;Kids' Wear;