NOT for small dogs.
The small size is NOT for a small dog.  I have a chihuahua mix and ordered this for her and it is HUGE!!! It is a little over an inch wide and she can't even bend her neck with this on.  This is not usable at all for us and it was a total waste of money.  Only get this if your dog weighs 40 lbs or greater.  It is cute though.
Rating: 2 stars