@curiousprincess It is a chastity belt with cables and you can cut them to right size.
Then you have to try to take out the wire threads one by one from the connections, if you not have a chance to get new ones. I do not know how this cable ends look like, but sometimes it is possible to use electrical wiring ring eye terminals.

If you must reuse the old ones, then try to make the cable connection like a tube to pull in the cut cable end. Press the cable connection with a pliers, so it not get off.
It is not a hard job to do, if you have the right tools or have someone who can help you to do it.