In this video, I repair a broken Doggo retracting dog leash that had stopped retracting. Sometimes it's a matter of a spring that popped out of its spring perch, but in this case, the end of the spring broke off. In order to repair the spring without purchasing a new one, I simply reformed or bent the end of the spring to mimic the configuration of the original spring.
TriFlow lubricant used in the video: https://amzn.to/3ms3sVd