Design: Ideal for dogs that have difficulty adapting to short-nosed dogs, it can effectively prevent dogs from biting, barking, chewing and eating. MATERIAL: The French muzzle is made of breathable mesh and durable nylon construction to keep the dog's nose comfortable. Adjustable Shoulder Straps: Adjustable nylon shoulder straps with quick release buckles, skin-friendly and easy to clean. COMFORTABLE: Breathable Mesh - Delicate edges prevent the mesh from rubbing against the eyes and nose, and the dog's tongue can stick out a little to help dissipate heat. Size (M size by default): If you need other sizes, you can leave a message for remarks. For pug masks for large, medium and small dogs, please refer to the size chart under the category photo for selection. XS (head circumference 35-38cm); S (head circumference 40-44cm); M (head circumference 45-50cm); L (head circumference 51-56cm).