How to Measure
First, get a piece of string or flexible tape measure.
Second, place one end of the string or tape between the dog’s ears.
Third, take the other end of the string or tape & go around the dog’s head just behind the ears. Don’t pull tight.
See the red line on the diagram? That is the neck measurement (send this to me with your order). The BarkDanna is actually two inches bigger than the neck measurement.