• Tube Pop Cover
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Tube Pop

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Great for ages 7-12


This kit provides hours of fun and educational play. The colorful building blocks have electronic components in them that, when assembled properly, will make circuits that light different LEDs and a fiber optic tree and spin a motor and fan.

There are 4 different projects to build, and all parts are compatible with other items in our Circuit BloxTM line to add even more fun to your building experience. Some of the fun projects you will build include a fiber optic tree and flying fan.

The kit includes a push-button switch, color-changing LED, motor, fan!

  • Contains 9 parts
  • Requires 3 "AA" batteries
  • Ages 8 and up.


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.

• Instruction sheet included
• 7 total pieces
• Build 7 projects
• Includes three (3) LEDs - Heart (red), Star (blue), and Blue/Red Bi-Directional
• An excellent introduction to Green Energy
• Compatible with other toy brick sets
• No batteries required!


Use a steady hand and navigate the hook around the maze without touching the metal wires together. If you do, the buzzer will sound with a “BEEP”. Whoever gets from one side to the other with the fewest number of beeps wins!

• Instruction sheet included
• 6 total pieces
• An excellent introduction to the Circuit BloxTM line
• Compatible with other toy brick sets
• Requires three (3) “AA” batteries

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