Herm SprengerChrome Plated Prong Dog Collar Ultra-Plus Pet Pinch Collar with Two O-Rings No-Pull Collar for Dogs Anti Pull Training Collar Made in Germany (25in x 4.0mm (Neck Size up to 21in))

I own two of the 3mm for my labs, very durable. I added a Sprenger quick release clip…that was life changing.

I liked that the prongs are rounded so there are no sharp points. It really helps with pulling when walking.

On time.

I have a 2-year-old, 85-pound Lab that has been breaking my back and trying to pull my arms out of their sockets, NO MORE, It took no more than a few minutes to get her under control. We have a ton of squirrels on our walk and after a couple of quick corrections, that was it, she was not trying to drag me up the tree after them, we just watched them play, wow.I have tried all the other "training collars and none gave me basically instant results like this. The lab was in no way harmed using this collar, the pressure is distributed evenly around the perimeter of the collar and my dog's tail was wagging as usual.This product is very well made and although a little pricey, it's worth every penny.

Been using for several months. Great collar for gaining the control you need. Has been tremendous in helping correct the first dog we bought another one for the second dog. Has not discolored the white or yellow dog’s neck. I would say this collar has built in act right. Iykyk

The size prongs I was looking for, just wished it came in a longer length. Had to buy extra prongs in order to fit our dog. If we had went up in prong size to get a longer collar it would of been too big and heavy.

This works veery well . now into about day 5 walking with it. She has gotten use to it and it does a very good job. The old one would slip off but not this one

overall this seemed ok but although the neck size was correct it didn't fit over my dogs head. a pit bull. the dog was very uncomfortable slipping it over his eyes. it just doesn't work. should have a clasp to put on and off. this is a second collar from this brand I returned for other reasons. just not worth the higher prices to me. has left no good impression on the quality. if you have a blockhead dog like pitbull don't get this model.

We are using this on our dog who was already a decent walker but would get random spurts of pulling and jumping while on our walks. With it on he is a very gentle walker, he does not lunge or jump like he used to and seems more calm. He has never pulled to the point where he has yelped or indicated any pain, it just adds a slight pressure that will bring him back to our side. Getting it without the clip to take on and off works but would be more convenient for putting on. Would recommend to owners who do their research on proper ways to use a prong and introduce it to their dog in the right way.

Worked from the first 15 seconds with a very reactive dog who gave me shoulder displacement the other day.Highly recommended! Not pulling anymore at all, and taking attention to me while walking. \Before use please watch professional videos on YouTube on how to achieve immediate result.Do not worry, if used correctly, it cannot harm your dog. If your dog is pulling that hard it will more likely damage its throat with a regular collar.

Works great!

Better than expected, my German Shepard walks right with me now which isually wasnt his issue before this colar. He is reactive and would try to lunge or bark at other dogs and people. I am hesitant using it as I don't want to hurt him, but so far with a little tug I am able to correct him as he is nor food motivated so training has been tough for walks as its not as easy to play

My dog has white on his neck, but this has stained it grey. Does the job but at the cost of staining the fur which cannot be easily cleaned off.