That collar is very powerful and you will have so much leverage on your dog’s neck with it that you have to be very careful.

The collar by its design will shorten (pinch) as the dog pulls and the prongs will create a noticeable discomfort for the dog. This is why the dog stops pulling.

Make sure your dog is already good at the basic obedience and that you can get his focus. Use this tool as a fine tuning tool.