I used some epoxy, even though I didn't mix it properly it took a couple months to sort of cure but it's holding now for sure, the ring is basically just glued to the leather so I would just use whatever will dry clear so if you get a little to much on it you'll never notice, once I put it on there I just took a toothpick and cleaned the edges up, zip tied it together and let it dry, I wouldn't recommend the zip ties though if you are going to be driving it a shoe string wrapped around it and tied would work though