Modular Robotics Cubelets Twenty Robot Blocks Cubelets are a fast and easy way to inspire kids to become better thinkers Includes two each of the Drive, Distance, Inverse, Passive, and Blocker blocks and one each of the Flashlight, Rotate, Speaker, Bar Graph, Temperature, Knob, Brightness, Maximum, Minimum, and Battery robot blocks Four Brick Adapters allow for connection to your favorite brick-based construction kits Battery Cubelet provides hours of continuous play. Micro-USB charging cable included. Lesson plans, activities, and robot recipes to get started available online!