How to Use a Prong Collar: A Step-by-Step Method

Used this way, a prong collar is a communication tool, not a punishment. It tells a dog that already knows its commands exactly when it has got something wrong, in a language it can feel through a distraction. Everything below assumes the dog knows the command in the first place. If it does not, teach the command before you reach for the collar.

Where should a prong collar sit on the neck?

High on the neck, just behind the ears and under the jaw, snug enough that it does not slide down or rotate.

That position matters more than anything else you will do with the collar. Low on the neck, near the shoulders, a prong collar sits over the strongest part of the dog and the flattest part of your leverage, so it does nothing useful and you end up pulling harder to get the same result. High on the neck, a light movement is enough.

A correctly sized collar should not droop. If the chain section hangs in a loop under the dog's chin at rest, the collar is too long and needs a link taking out. For the full detail on fit, welfare and the legal position across the four UK nations, read our guide to whether prong collars are legal in the UK before you start.

Which gauge do you need, 2.25mm or 3.2mm?

Match the wire gauge to the size of the dog, then set the length with links.

The Herm Sprenger Ultra-Plus half check collar comes in the two gauges most handlers need:

• 2.25mm, 41cm as supplied, for dogs up to 20kg. The finer wire means more prongs around the neck, so pressure is spread across more contact points. This is the lighter, more precise of the two, not the harsher one.
• 3.2mm, 58cm as supplied, for dogs up to 40kg. The heavier gauge for larger, stronger working dogs.

Both are supplied longer than most dogs need, which is deliberate. You fit the collar by removing links until it sits right, and you can add them back later with extra links as a young dog grows or a coat thickens over winter.

A common mistake is buying up a gauge for a strong dog on the assumption that heavier means more control. It usually means the opposite. Fewer, larger prongs concentrate pressure into fewer points. Size by weight and neck, not by how hard the dog pulls.

Step 1: How do you put a prong collar on?

Never pull it over the dog's head. Unclip it.

1. Pinch two prongs of one link together and unhook the link from its neighbour, so the collar opens into a strap.
2. Pass it around the dog's neck, high up behind the ears.
3. Hook the link back together and check it has seated properly.
4. Rotate the collar so the chain or half check section sits at the top of the neck, under your lead hand.
5. Check the fit with the collar at rest. The prongs should touch the neck without digging in, and the collar should not slip down.

Pulling a prong collar over the head stretches the links, drags the prongs through the coat and is the fastest way to loosen a collar that was sized correctly. It also teaches the dog to dislike the collar going on, which is a problem you do not need.

Refit it at the start of every session. Coats change, dogs gain and lose condition, and a collar that was right in March will not be right in November.

Step 2: How do you set up the two leads?

This is the part most people skip, and it is the part that keeps the dog safe.

A prong collar is a training aid, not a substitute for a normal collar. The dog is held on its regular collar or harness at all times. The prong collar is only there to deliver the correction.

The setup:

• Lead one clips to the dog's regular collar or harness. This is the lead that holds the dog. If everything else fails, this is what stops it leaving.
• Lead two clips to the prong collar. This one does nothing except carry the correction.
• A double training lead does both jobs on one piece of kit, which is why most working handlers use one.
• A safety line between the prong collar and the regular collar or harness is worth adding on top. It is a short adjustable webbing strap with a clip at each end, and it means that if a link ever comes apart mid-session, the dog is still attached to you.

Links can and do fail, usually because someone has stretched them putting the collar on over the head. The two-lead setup means a failure is an inconvenience rather than a dog in a road.

Step 3: How do you actually give the correction?

Voice first, collar second, and always brief.

1. The dog does something you have already taught it not to do.
2. Give a clear verbal “no”. One word, said once, in a flat tone.
3. If the dog does not respond, apply a brief, controlled correction on the prong lead: a short movement, released immediately.
4. The moment the dog responds correctly, everything stops. Release the pressure and let the dog get on with it.
5. Reward the right answer, whether that is praise, a treat or just carrying on with the walk.

The correction is a tap on the shoulder, not a haul. If you are pulling the dog off its feet, or repeating the correction because it is not working, stop. Something upstream is wrong: the fit, the position on the neck, or the fact that the dog does not actually know the command yet.

Consistency is what makes this work. A correction that comes every time teaches something in a handful of sessions. A correction that comes when you happen to notice teaches nothing except that you are unpredictable.

The setup at a glance

Why does this method work?

Because the dog learns that the sensation is a consequence of its own choice, and that the choice to comply makes it stop.

The verbal “no” comes first for a reason. Say it every time, immediately before the correction, and the word itself starts doing the work. Within a few weeks most dogs respond to the voice alone and the collar becomes a backstop you rarely use. That is the goal. A prong collar you still need at full effect a year in is a prong collar that has not taught anything.

Get the timing wrong and you get the opposite result. A correction that lands a second or two late, or that comes while the dog is looking at another dog rather than while it is committing the behaviour, attaches the sensation to the wrong thing. A dog that decides the pinch comes from the other dog on the path, not from you, will react more to other dogs rather than less. Voice first, correction immediately, release immediately, and the meaning stays where it belongs.

What goes wrong most often?

Five things, in roughly this order:

• The collar is too low. It slides to the base of the neck, does nothing, and the handler compensates by pulling harder.
• It is too loose. A collar sized to be comfortable rather than correct rotates around the neck and delivers an uneven, unpredictable correction.
• The correction is too long. Sustained pressure is not a correction, it is a restraint, and the dog learns to lean into it.
• It is left on. A prong collar comes off at the end of the session. It is not a walking collar, a crate collar or an ID collar.
• There is only one lead. If the prong collar is the only thing attached to the dog, one failed link is all it takes.

Two accessories head off most of the wear-related problems. Rubber end caps blunt the tips on the two end prongs, and a prong collar cover protects the coat on dogs that wear one regularly. Neither changes how the collar works.

One note on the black finish specifically: the blackened stainless steel is not a permanent coating, and coat friction will wear it to an antique look over time. That is normal, but it means the black collars are not the right choice for white or very light haired dogs. The stainless steel version is the one to buy for those.

Is a prong collar right for your dog?

It is a specific tool for a specific job: giving clear, immediate feedback to a strong, driven dog that already knows its commands and needs help holding them under distraction.

It is the wrong tool for a puppy, for a dog that has not learned the basics, for a fearful or reactive dog, for a dog with any neck or throat condition, and for any handler picking it up out of frustration. In those cases a well-fitted harness, a long line and reward-based work with a qualified trainer will get you further. If you are new to prong collars, get hands-on guidance before your first session rather than after your first problem.

If it does fit your situation, you can compare gauges, clips and finishes across the Von Wolf prong collar range, and the wider Herm Sprenger collection covers the extra links, covers, clips and safety kit that go with them.

Shop prong collars and links →

Frequently asked questions

How tight should a prong collar be?

Snug enough that it stays high on the neck without sliding down or rotating, and loose enough that the prongs rest against the skin without digging in when the collar is at rest. If the chain section hangs in a visible loop under the chin, remove a link.

Should you put a prong collar over the dog's head?

No. Unclip a link, pass the collar around the neck and reconnect it. Pulling it over the head stretches the links, which loosens the fit and is the most common cause of a link failing later.

Do you need two leads with a prong collar?

Yes. One lead on the regular collar or harness holds the dog at all times. A second lead on the prong collar carries the correction. A double training lead does both, and a safety line between the two collars adds a backup if a link ever comes apart.

Which prong collar gauge should I choose, 2.25mm or 3.2mm?

2.25mm for dogs up to around 20kg, 3.2mm for dogs up to around 40kg. The finer 2.25mm gauge spreads pressure across more prongs, so it is the more precise option rather than the weaker one. Set the final length by adding or removing links.

How long should a correction last?

A fraction of a second. A correction is a brief, controlled movement released the instant the dog responds. Sustained pressure is a restraint, not a correction, and dogs learn to lean into it.

Can you leave a prong collar on between sessions?

No. It comes off at the end of the session. A prong collar is for supervised training only, never for unsupervised wear, crating or as an everyday collar.

How long before my dog responds to the voice alone?

Most dogs start responding to the verbal “no” within a few weeks if the correction follows it every single time. That is the point of the method. If you still need the collar at full effect months later, review the fit, the timing and whether the dog genuinely knows the command.