Wave Demonstrator Set

Product Code: UWDSET1
In Stock
Price: $17.95
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Set includes two helical springs and a length of cotton string. The long, narrow spring measures 3/4" x 72", and can be extended up to 5 meters. The larger spring measures 3" x 4", and can be extended many times its length without distortion. Includes activity guide. Shipping weight for WDSET1: 2.5 lb.