Worked excellent for my purpose. Dont try and crimp them they are too thin and will crush out. Just secure them in place with heat shrink and let the set screw do all the work. All your wire strands will be neatly captured and secure.
Pros
Works as excited
Cons
Ferrule pins are not compatible with all wire types and sizes, limiting the product's versatility
I use these to maintain control of the fine strands of wire in car stereo power cables. Makes Amp wire installs neat and clean, and you don't fight with the wires getting them back into the amp or fuse holder if you need to remove them for some reason because the ferrule keeps the wire from spreading when crushed.
Pros
They are decent but solder the open end of it before installing it or the wire will slide out real easy.
Cons
The pack only contains 100 ferrule pins, which may not be sufficient for larger wiring projects, necessitating multiple purchases