This spring fits on the 'horseshoe' brake actuator arm to return it to the 'off' position. These are NEW ORIGINAL FMR parts - not remanufactured so you can be sure of the quality. Note that they are handed left/right and the locating pin is bent over after inserting into the backplate. See parts diagram for other components. Sold as a pair as replacing single springs cannot achieve correct left / right brake balance.