SKU: NZ39640

Spiral Spring 3-in-1 Science Kit

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9,570 PTS
Standard delivery
2,250 PTS or $15.00
Dispatches in 4 days
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Product details


Have you ever wondered the power source of a wind-up car? Where does the clock ticking sound of Dad’s mechanical watch come from?

The secret lies in the mainspring. Centered on the clockwork there is a spiral torsion spring. We can store the energy by winding it tightly, and then release it to trigger the inner mechanical operation.

When the spiral spring is totally untwisted, the operation then stops. The mainspring of this 3-in-1 science kit is the first one in the world made of plastic, instead of metal.

Unlike metal springs usually hidden in gearboxes for safety concerns, this plastic one is safe enough to be completely exposed even with its highest running speed, giving kids a great opportunity to explore the fascinating clockwork mechanism.


  • This kit can be disassembled and reassembled into 3 styles: car, robot, and timer
  • Car: wind up tightly and then release. The car will run at full speed surprisingly up to 14 meters.
  • No motor, no battery, no screws are required, the only thing you need is a diagonal cutter to help you build up the entire piece.
  • First ever spiral spring made of PLASTIC Powered by plastic spiral spring
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