1. Length - stretch from the tip of the dog's nose to the eye line.
2. Circumference - circumference around your pet's snout one inch below the eye line, should be measured when its mouth a bit open.
3. Eye Line - length from the eye line to right behind your animal's ears.
4. Neck Circumference - girth around the neck right behind the pet's ears and right behind its jaw.
5. Width - your dog's snout width in the widest points.
6. Height - the animal's snout height, should be measured when its mouth slightly open.
To see more detailed instructions how to size your dog - Click here