I love them. I have two Dobies. One is 65 lbs and the other is a puppy at about 68 lbs- high energy and very strong. I trained, with a trainer, on walking them with a prong collar which I understand people have strong feelings about. As a matter of fact, I never wanted to use them b/c they look horrible but properly used they provide control without Any pain. So when I want to take my guys on a nice walk where they have more room to roam, I use the Flexi retractable lease for Large dogs (can be found on Amazon or Walmart). My dogs run up to me and jump up tails wagging when they see take out the prong collar and retractable leash.
