When I first got my dog I knew very little of them and bought the collar and the dvd apart from the training being completely ineffective the collar caused physical harm to my dog.I put it on her once and it seemed fine he sure slowed down but the second time he wore it he was bleeding when I took it off if him!Since then I have taken a course I. Dog training and have myself become a different trainer in the course I learned that the prong collar is actually the worst type of collar you could possibly get for your dog.It is still part of the negative based training that is completely wrong.
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