7/16" x .048" x 3-3/4" x.048 WG Steel Extension Springs SPRE-361 (6 pcs.)

Diameter: 7/16"
Diameter 2: .048"
Length: 3-3/4"
Material: Spring Steel
Nominal Size: SRM61
Type: Extension Spring
WireDiameter: .048 WG

Box of 6.

Extension springs are wire coils designed to become longer under load. Their turns are normally touching in the unloaded position, and they have a hook, loop or some other means of attachment at each end.