Pros: It is a bottle, it comes with two nipples, it is cheap
Cons: The rubber of the nipples feels rather stiff, the bottle will concave in, not good for older kittens
I had two of these bottles, first off, to get the milk flowing you have to punch the hole in the nipple with either a hot pin or needle, it was hard to do, too small, no milk comes out, too large and the kitten will choke. This is not a good bottle for older kittens, they will wreck it or pull the nipple right out of the bottle. If they are teething, they will chew it up. I think that if you were to use a syringe, without any needle or perhaps, the PetAg bottles, they work much better instead of these.