Circuit Cubes are a set of three blocks designed to let you add power, lights and motors to various creations. Unlike many similar products (all with a STEM/Maker agenda) Circuit Cubes is designed to be integrated with other toys or materials.

If you want to make your Tinker Toys or LEGO blocks move, you can integrate the three types of blocks, either by wires. The battery is the power supply that drives the motor to rotate the gears, lights the LED, spins the propeller, buzzes the buzzer, and engages the switch. Children learn that the battery cube is the most important because it can make the motor move, or light the LED.