United Scientific™ Flat Coiled Spring, 3" X 4"

Larger Spring ONLY. The Larger Spring Measures 3" X 4", And Can Be Extended Many Times Its Length Without Distortion. Includes Activity Guide.
This is for the larger spring ONLY. For the entire set please see SKU WDSET1.



Spring measures 3" x 4", and can be extended many times its length without distortion. Includes activity guide.