Wave Demonstration Set Manufacturers & Exporters, Wave Demonstration Set Supply for Tenders from India
Product Code : WAS0027
Description: Two helical springs: Long spring is 3/4" x 72" and can extend 5 meters. Large spring is 3 x 4". Extends many times its length without distortion. 3 m cotton cord to suspend large spring. Ship weight: 2.5 lb.