How to measure Martingale collars

With this measuring guide you make sure that collar fits perfectly.

Measures you need for martingale collars:

How to measure?

Make a hoop of your measuring tape and string it around neck
Measure dogs head girth (widest point of skull) Don´t forget ears!
Measure neck girth from the point where collar fits naturally.
Make sure that the measuring tape is not too tight but still tight enough. (tip: keep your finger between neck and measuring tape)