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$10.38
Original: $29.65
-65%United Scientific Wave Demonstrator Spring Set (Both Springs And Cotton String)—
$29.65
$10.38The Story
Set includes two helical springs. 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 activity guide.
Shipping weight for WDSET1: 2.5 lbs
Description
Set includes two helical springs. 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 activity guide.
Shipping weight for WDSET1: 2.5 lbs
