I like the pinch collars to help train dogs that pull. It is not for every dog because some dogs are just too aggresive on a leash and you need to find a better alternative.

Pros: works well for intended purpose

Cons: not for extended use

If used correctly, can deter dog from pulling. If used incorrectly, dog may become fearful or aggressive due to the pinching sensation.

Pros: For some dogs, can be effective

Cons: Can cause fear and aggression

There are many on the market but Guardian Gear collars are the best.

Pros: helps in training

Cons: none noted

I use this for my dogs and it works...great.

Pros: None

Cons: None