1) The Neck Loop should be snug (like a belt or a shoe) so one finger can barely fit between the strap and neck. It must fit as high on the neck as possible, directly behind the ears and above the Adam's apple in front. The snugger the Neck Loop, the looser the Nose Loop can be.

2) The Nose Loop should be in front of your dog's eyes and behind the corners of his mouth. It should be loose enough to move freely 1-2 inches toward fleshy part of the nose, but not so loose that is can be pulled off the muzzle.

3) Be certain to check the fit every day, especially on growing pups: Is the Neck Strap close-fitting and snug high behind the ears? Is the Nose Loop comfortable and reaching to the fleshy part of the nose, but not so loose that it can be pulled off?

4) After you dog has reached his full growth, you can remove any excess length of the Neck Strap. With the headcollar off your dog, cut the strap with a scissors and use a flame to seal the cut edge and prevent fraying.