My nephew's (knock off) crocs strap button broke. I printed a few other designs (combined or separate) but each broke or was too large for the hole that I couldn't fix it for him. I decided to try my own version. It clicks together, I suggested to my sister to add a little super glue to it just to be on the safe side. She said it has worked well thus far. If you have the same problem try it out and let me know if it works. FYI I don't know which in the picture is the shoe I think its the right but guess that is a good thing you cannot tell very easily.