Herm Sprenger - Stainless Steel Ultra-Plus Prong Dog Training Collar - Black - 4 mm x 20" Neck Size; 25" Chain Length

Herm Sprenger collars are the most functional and durable prong collars on the market. Fit, ease of use with the snap on/off feature, and dog comfort when fitted correctly are all winners. Training with the Herm Sprenger collar becomes a breeze for daily training with my German Shepherd, an imported executive protection dog from Germany!

this is a great product that is working so well with leash training my german shepherd. for reference my dog is BAD leash puller who will literally run in place while walking and just doesn’t listen at all.. after putting on this training tool it has made such a huge difference & she immediately stopped pulling. i got the 2.25mm since so many trainers recommended this size and i purchased extra links (in case i needed it bigger or anything) & after adjusting the size it fits well on her. also i have even tried this product on my own neck and pulled harder than anyone would on any dog and it didn’t hurt at all. this is such a safe training tool that i would definitely recommend to anyone who is trying to leash train their dog. ALSO ofc do your research on the product so you know how to properly use this product and how to properly fit it to your dogs neck before purchasing !!

Yes, I was absolutely hesitant to use these collars initially. I avoided it and probably "over treated" my two pups trying to train them, but maybe I was actually bribing them. I had two dog trainers recommend this collar and I understand others may not. My two pups are 7 different breeds (did the dog dna testing) and they are large dogs. They are super, incredibly sweet, loving dogs. I was afraid I would cause them to distrust me and I was afraid I would eliminate some of their loving, sweet natures by using this training collar. I was, very thankfully, so wrong. Because they are large puppies (67lbs and 80lbs), they do not know their own strength, get over-excited, and are more focused on getting what they want than on their training walks. Used correctly, and I sincerely mean correctly, they are fabulous training tools. I must also admit they are terrific safety features for me since my dogs will not take off after a squirrel or anything else while I walk them with these collars. I quickly believed all the information in the many, many YouTube videos I watched and told by the trainers I noted. These collars are a very humane way to train dogs. Again, this is only true when used properly. Admittedly, I originally figured these collars were worth a try and I did not have to continue using them if I did not want to or if I did not like them. Before I used these collars, I used harnesses that were designed to reduce pulling when walking. I would practically "fight" them trying to restrict their moving forward, sideways, or any direction they wanted to take me. My pups did not understand why they were being limited and it was a continuous battle. Truthfully, walks were not fun nor too bonding for us. Once I used these collars, they learned almost immediately that they have control over their correction. It helped them choose to walk well and focus on our walking. Yes, I heard two light yelps the very first time. Yeah, I hated it. I knew they were not hurt or choked at all. They were surprised. Do you blame them? They did not know what these collars were and they were used to tugging me along on walks. That was the only slight yelp I've heard since using them. My neck, shoulders, and back also thank these collars. Most importantly, my dogs actually like them. Sincerely. They know every time we go on a walk they wear them. I pull out the collars and they are genuinely excited. They are very well behaved on our urban streets and I get compliments for my just turned 1 year old dogs. I will emphasize one more time that the collar must be used as the training tool for which it is designed. Following the dog trainers' instructions will make these collars pleasant. It helps my dogs to know their limits, correct themselves (they have the control), and get to enjoy our walks. And, yes, I give treats with these collars on while walking when they do what I ask like sit at a corner. I really do not use the collars for more than leash walking. I noticed that using them for walks was enough for my dogs to train better with me in other settings. These collars are well made. They are strong. They are very sturdy. I appreciate that they come in black. These collars are stronger and more secure than the ones I see in pet stores. Like any training collar, they will fail some day. Because of that, I use a carabiner to connect them to their regular collar when walking. I also purchased additional hooks so that I can avoid that potential day by changing hooks out.

Easily adjustable and sliding clip guard works well. Only thing about the sliding guard is to be careful when you take the collar off that it does not slide off entirely. I would definitely recommend this product. It is well built and easy to use.

This collar is well-made. The construction is good; the prongs are rounded and smooth. This type of collar is meant to mimic the sensation of a mother dog reminding her pup to "behave." When I had an arm injury, it reminded one of my more excitable, enthusiastic dogs not to pull on the leash -- ever -- because when she pulled, she corrected herself without my having to scold or bribe or otherwise do anything. She became very mindful of rushing ahead or putting any pressure on my arm. YES, training could have taught her to walk on a loose leash at all times (even when excited) but this did the trick -- training her gently as her mother would have done. Different dogs, like different people, may learn better through some methods than others. As scary as it may look to the nervous-souls out there, it is EXACTLY like a mother dog's gentle correction, and very acceptable information to the dog, and does help some dogs learn. Be sure when you use this sort of collar, that you use just enough links to hold the collar snugly at the top of the neck, don't pull back on the leash unless you have a reason or message to convey, pay attention to what you and your dog are doing, and NEVER let the dog drag its leash while clipped to this collar. I highly recommend this collar to be used for some dogs for whom other methods don't register. Each individual has their own learning styles and needs at different points of their training. It was just what we needed at this particular point in time. (The other option was not to take this particular dog out until my arm had completely healed -- something we both would have been miserable with). We won't always use it -- it is a tool for a particular purpose and I can see that we may not need it any more -- because it communicated the message in "dog language" for her. == added comment on Dec. 1, 2015 == After a couple of weeks letting her self-correct with the prong collar, and some extra focus and verbal attention directing where she should be at certain times, she seems to have learned how to be careful with my arm. We go out without the prong collar, and she is still MUCH more attentive and aware of my needs (knows not to pull on the injured arm, not to rush me, to look at my face for confirmation before changing direction or speeding up). The prong collar has been an effective, positive tool and we may not need it anymore. Our relationship is as good as ever -- which is to say, excellent! I'd like to share this video by a professional dog trainer experienced in the use of the prong collar -- suggesting when it may be appropriate or inappropriate: <https://leerburg.com/flix/player.php/1085/Question_and_Answer_on_Prong_Collars>

Keep in mind that 3 inches of the size is for the connection to the leash. Do not count that in the size of the neck. Great quality and function.

Still lasting without any problems with the prongs there’s a possibility some people don’t know how to use this device needs to be just underneath the dogs ears nice a snuggly so it pinching the dog if pulled but I found out sooner or later 4mm isn’t necessary 3.2 is better if your dog has a 25 inch neck if your dog has a bigger neck then get the 4mm This is the 2nd one I bought off of Amazon the 1st one was exactly what I ordered this one doesn’t match up Still seems to be stainless steel and has the swivel on it at least

Great quality, helps with leash pulling

A entrega foi um pouco demorada, mas ja era de se esperar, ainda assim chegou antes do prazo. Como no BR poucas pessoas importam da HS, gostei de ter no catálogo da amazon. Sobre a prong collar em si, é de muita qualidade. Fiquei com medo de ter comprado o tamanho errado, mas a de 2,25mm coube certinho no pescoço de 38cm do meu cachorro. Ainda vou começar os treinos, mas já está aprovada!

Produto excelente! Chegou antes do prazo estipulado!

Excelente calidad, esta muy padre complio totalmente con mis expectativas