The things I've heard of have been harnesses and carabiners. Here is a warning that has been put up in our local climbing center: https://imgur.com/a/R0PGiGI h

The things I've heard of have been harnesses and carabiners. Here is a warning that has been put up in our local climbing center: https://imgur.com/a/R0PGiGI https://imgur.com/a/R0PGiGI