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.
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.
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