I've got a question about a spring. I have a big yard that I can't fence in so the dog has to be on a cable. I have a cable approximately thirty feet long strung between two 4x4's and he has about a twenty-five foot cable on a pulley that runs between the two so he has a pretty good size area to run. Periodically I replace the lead cable when it becomes worn or kinked. Normally about every other time I'll replace the main cable too.
After doing this a few times and spending quite a bit on the project, I got smart and bought a 250' reel of cable that will to the job a few times and save a lot of money. I'd like to replace the shock absorbing springs on each end of the main cable too but can't seem to find any. Normally they come with the kit when you buy a cable kit like I've got but I can't seem to find them anywhere individually. I've looked at hardware stores and such and just can't find them. I guess I don't even know what to call it. Here's a picture to see what I'm talking about. Does anyone know what to even call this so I can do some more searching. Thanks for any input.