The muzzle project for the FAG company started from the study of the morphology of the dog's snout. At this juncture, the collaboration with the company was particularly useful, allowing us to know the anatomical specifications of the various breeds of dogs and to understand the necessary requirements to allow the animal to breathe correctly and easily. We have therefore created a shape suitable for all dogs with protruding snouts. This shape was then scaled in 9 different sizes so that it could be adapted to muzzles of all sizes. The ergonomic aspects play a central role. The shape of the muzzle is designed so that the dog wearing it can open his mouth slightly. This is a fundamental aspect for the well-being of the animal that needs to breathe correctly and breathe through the tongue. Safety and comfort aspects have therefore been reconciled.