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Eye-catching Supertek Ultimate Wire Helix, Wave Demonstrator With Stand (8 Inches / 20 Cm Closed Length, 30 Feet Extended Length) Upgraded Model [9xkQNTSM]
$16.99
$54.99
-69%
Product descriptionUltimate Wire Helix (Slinky) With a stand for storage. Useful to demonstrate both Transverse and Longitudinal waves. Closed length is 8 inches or 400mm. Fully extended length is over 30 feet! (10 Meters)
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Eye-catching Supertek Ultimate Wire Helix, Wave Demonstrator With Stand (8 Inches / 20 Cm Closed Length, 30 Feet Extended Length) Upgraded Model [9xkQNTSM]
Product description
Ultimate Wire Helix (Slinky) With a stand for storage. Useful to demonstrate both Transverse and Longitudinal waves. Closed length is 8 inches or 400mm. Fully extended length is over 30 feet! (10 Meters)
What Our Customers Say
Absolutely no complaints!
A great item that is very clever.
- Nia J..
Absolutely no complaints!
An excellent gadget. Very handy.
- Rhydderch O..
Absolutely no complaints!
This is a handy and useful gadget.
- Owain P..
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