Review on Large Star Mark Pro-Training Dog Collar - 21-inch by Anne Miller

I have a 14 month old German Shepherd boy who has his own opinion when we go for a walk. My trainer uses this collar for dog training. That's how I found out about it. I can say when my dog wears this collar he is an angel. He walks calmly on his heel. He does not pull or tug to get to other dogs. He just listens with a halo over his head. If this collar is not put on, he wants to test his limits. I have been using this collar and my German Shepherd for about a month and a half and I can say that it has helped a lot.