Everbilt 3.5 in. x 0.25 in. x 0.041 in. Zinc Extension Spring

A spring is an elastic object that stores energy and is typically made of spring steel. Compression springs shorten with load and extension springs lengthen with load. Springs have many applications in home or work including toys, tools, pens, swings, flashlights and time pieces. Measurements are wire x od x length.