When a measurement is not possible
We make all our collars so we can usually accommodate everyone, even if you can't get a measurement.

NOTE: This collar has no adjustment at all. If you are unsure of the size make sure you order one thats not too small. If its too big at least they will be able to wear it. If its too small it will be impossible to wear.

If the collar is for a certain individual, then you can probably come up with a rough guess as to what size they need. The average person usually has a neck size of about 15-16 inches. The smallest are about 12", the largest are about 24". so if the person receiving the collar is a little smaller then average but not really small then their neck size would be somewhere around 14 inches. If they're a little on the large side but not real big then its probably going to be about 18-19 inches.