Rubber inserts broke before use
"I bought these to replace the dogbones on some quickdraws that are at their retirement age. These are light and I'm sure they will work well. But I ran into trouble trying to put them on the carabiners. The rubber inserts that are supposed to keep the bottom carabiner from spinning were so tight that several of them broke while I was assembling them. I guess it's not really a safety issue, just a convenience issue."
