Circuit Cubes Gears Go! Multi-Vehicle Mobility Launch Kit - Engineering Stem Kit For Children And AdultsBring Your Toys To Life With Circuit Cubes, The Electronic Building Blocks That Add Power, Motion, And Light To Your Creations. Designed By Stem Teachers, Circuit Cubes Can Turn A Light On, Power A Motor, Or Make Wheels Spin Plus, They Work With Your Favorite Bricks. Circuit Cubes Are A Fun Way To Educate Kids In The Basic Stem Areas. They Help Students Engage In Inspired Discovery And Creativity. In The Process, Kids Develop Problem Solving Skills