The way I was told to fit it is that it needs to rest in the same place as a show collar so just up behind the ears. Not low down the neck like most collars. And it needs to be snug enough not to slid down. Not so tight that you can't put a finger or so under but snug enough to stay up there and not slide down loose on the neck. Hope this helps.
That is how it fits Ajax.
Nicole
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