With the Super Spring and Stand, the extra long spring will let you super-size your wave demonstrations to illustrate traveling waves as well as standing wave patterns.
Super-size your wave demonstrations with this extra long spring. Long enough to stretch across a classroom or gymnasium. Effectively shows transverse and longitudinal traveling waves as well as standing wave patterns. Convenient storage stand will guarantee that the spring will remain tangle-free year after year. Instructions provided. Dimensions: 8" long × 3" diameter.