Cubelets Twenty is the perfect tool to deeply investigate robotics. Cubelets are a groundbreaking robot construction system designed for budding innovators ages four and up. Cubelets were designed to teach the big lessons behind complex systems, design thinking, and emergence with tiny robots. Cubelets Twenty comes complete with everything inventors, young and old, need to build thousands and thousands of interactive robots. The included Brick Adapters connect to your favorite brick-based construction systems bringing vivid motion and life to the toys you already own. Combine a host of sensors and action blocks to build your own robotic creations. The Cubelets 20 kit lets you experiment with 15 different types of Cubelets and includes multiples of our most popular pieces. Add a Bluetooth Cubelet (sold separately) to create remote-control constructions and other interactive projects. The advanced technology inside Cubelets makes robot construction remarkably simple and fast. With Cubelets, there's no wrong way to build a robot. Cubelets automatically route power and data where needed, freeing you to invent with creative abandon!