An extension spring offers resistance to a pulling force. Many different end configurations or "hooks" are used to secure the spring to the source of the pulling force. Extension springs are available in wire sizes from .020” to .162” with traditional or exotic hook, loop and leg configurations. Extension springs are used in many applications, including high performance racing equipment, brake systems, medical equipment, healthcare equipment, conveyor systems, door assemblies, farm machinery and more. We supply extension springs to outdoor power equipment manufactures of lawn mowers, trimmers, edgers, tillers, blowers, chippers, as well as OEM companies using extension springs with lubrication products, greasers, conveyors, pressure, vacuum switches, bicycle tools, and bicycle accessories.