Herm Sprenger Ultra-Plus Training Dog Prong Collar with Latch, 20-in neck, 3.25-mm wide

The Herm Sprenger prong collar was recommended by the foster home rescuer and her trainer. She had recommended the collar that is 2.25 mm wide, which we ordered elsewhere and found that based on length it is not recommended for dogs with necks wider than 13", so we ordered this one. It's kind of heavy and more likely to move from the top of the neck where it should be. We later found that we can order additional prongs so we can make the 2.25 mm collar long enough for a dog with a 15" neck. Adding a prong might be a better option for others as well. The collar is of good quality and we will see if the rescue organization can use it for their larger dogs.

I bought this less than a year ago and the clasp no longer closes. I have to push it closed with my fingers and I am worried it will not stay closed and release while walking my dog. I had one before that lasted a long time - very disappointed with this one.

I read and read and read everything on the prong collars - I read reviews, reddit threads, training sites, videos ect. I wanted to make sure that this was going to be the best option for my dog and me. I discovered that the Herm Sprenger was highly recomended by many sites so I purchased it, Ya'll night and day response! My dog is a german sheperd/carolina dog (75lbs double coated) he is stong and was a heavy puller - It was a a task to walk him because he loves to find new sents and that resulted in pulling :( I read the training sites and watched the videos - i did not want a robot dog that walks stiff and had no freedom to look at new things I still wanted him to enjoy his walk so I did not implemet the snap or extensive ruls that most traiers recomended, I put the collar on him let him get used to it in the house and then took him on a walk he walked so nice he did not pull just walked he still would stop to smell but it was less draging me to a spot and more casual sniffing he seemed like he enjoyed the walk with the collar and 5 foot leash more than when he walked with the rectactable leach (15/20ft long) and a chain collar - I think he need the structure and correction that this collar implemted. I would highly recomend this to anyone who has a dog that pulls and I would highly recomend a trainer! I just did not need one as my boy pulled but was not unrully and responed to the collar instantly. PLEASE read up on these and maybe consult a trainer.