These cable ends are pretty bad. The spot that normally has a little plastic bar that tamps down on the cable sheathing is mostly blank with two small posts on the sides. They don't hold the cable properly and if a cable gets tugged on all the force will be on the pins rather than on the sheath (where it's supposed to be). If you put an unstripped cable into one and crimp as hard as you can, the cable will pull back out with very little effort. These are pretty much manufactured trash IMO.