Where do you find them? I checked a bunch of grocery stores and they don't have them anywhere.There is some tartar issues indeed- this is why I reckon chicken necks may help (cat does not eat special formula dry food).
I can only find 1 kg (2 lb) bags - far to much for my 3 kg cat who is on combined commercial wet-dry food.
Would be ok to freeze the necks?
You would have better luck asking a butcher to order them for you. If you have a raw pet food store close by they also usually sell them.Where do you find them? I checked a bunch of grocery stores and they don't have them anywhere.