Cubelets are magnetic blocks for children age 4+ that can be snapped together to make an endless variety of robots with no programming and no wires. Each Cubelet has a tiny computer inside of it and is a robot in its own right. When you put Cubelets together, you're actually making a robot out of several smaller robots. Each Cubelet communicates with its neighbors so you know that if two blocks are next to each other, they're talking. Sense Cubelets act like our eyes and ears. Action Cubelets act as outputs. They do things like make noise, spin, drive or shine a light.