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Wave Demonstration Set.

Wave Demonstration Set.

Wave Demonstration Set.

Two helical springs:
Long spring is 3/4" x 72" and can extend 5 meters.
Large spring is 3 x 4". Extends many times its length without distortion.
3 m cotton cord to suspend large spring.
Ship weight: 2.5 lb.

613-0140

$38.06

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Two helical springs:
Long spring is 3/4" x 72" and can extend 5 meters.
Large spring is 3 x 4". Extends many times its length without distortion.
3 m cotton cord to suspend large spring.
Ship weight: 2.5 lb.

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