Use the hand crank to generate electricity and light the three LEDs! Learn about polarity and see what happens when you turn the crank in either direction. Excellent introduction to green energy!

There are 7 different projects to build, and all parts are compatible with other items in theCircuit BloxTM line to add even more fun to your building experience.

The kit includes 3 LEDs (red heart, blue star, and blue/red bi-directional)!

• Contains 9 parts
• No batteries required
• Ages 8 and up