The WDSET1 Wave Demonstrator Set includes two helical springs and a length of cotton string.
The long narrow spring measures 3/4" x 72" and can be extended to 5 meters. The larger spring measures 3" x 4" and can be extended many times its length without distortion. Includes an actvity guide.
| Item# | Description |
| WDSET1 | Wave Demonstrator Set (both springs and cotton string) |
| WDS006 | Spiral Spring, 3/4" x 72" |
| FCS003 | Flat Coiled Spring, 3" x 4" |
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