Build with LEGO bricks! Would you like to build a robot with battery-powered blocks that move, sense light and make noises? Join us for fun with Legos and Cubelets. What's a Cubelet? Cubelets are robot blocks that combine to work together in a team. Each Cubelet is about an inch-and-a-half across and magnetically connects face-to-facw with other cubelets. We will have Duplo sets fo rthe little ones too!