Dog-Thing by Talents10 - Dog Training Prong Collar (Large, 3.5mm Thickness), Metal Collar for Large Dog Obedience Training. Better Than a Choke Chain or Other Dog Collars for Dog Walking
Brand: Dog-Thing

This Dog Collar is by far the best training tool to use for dog training. Why? Because it works! Dogs communicate with each other using their mouths and teeth constantly. Dogs mouth each other in play constantly, and a mother dog will pinch her puppy on the neck to control and correct the puppy. This collar is made of interlocking blunt links so when you give a swift correction it gently pinches the dog's neck mimicking the correction a mother dog gives her puppies. This doesn't hurt them, rather, you are communicating to the dog that you are the pack leader in a similar way a mother communicates to her puppies. It is an effective and useful management tool for gaining control at any phase of basic obedience training, an essential education that dogs deserve and need. The collar should fit snug and high on your dog's neck just behind the ears. This collar should not be left on the dog when unattended. If it isn't sold by Talents10, then it isn't a real Dog-Thing training collar.

Quality Controlled in the USA. Fits dogs with neck measurements up to 17 inches
Stop excessive pulling - Great for training and controlling large strong dogs at any stage of training
The collar is made of 3.5MM thick, steel interlocking links with an attractive and durable chrome finish
Comes in multiple sizes: Medium, Large, Extra Large. This Large Collar Fits dogs with up to 17" round neck measurement with prongs approximately 1.1" wide. Adjustable size, add or remove links to obtain proper fit
Be the pack leader with this safe and effective training collar. Provides gentle pinch sensation similar to how a mother dog corrects her puppies using her teeth.