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#54181 CIRCUIT BLOX 120
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This kit provides hours of fun and educational play. The colorful building blocks contain electronic components such as a battery module, switches, LEDs, motor, speaker, IC sound module, amplifier or FM receiver. Build 120 different 3D circuits that teach STEM and light a star, spin a motor to launch a fan high in the air, play music, sirens and space battle sounds, and even build your own FM radio!