More practical design: With this muzzle, they can smell everything but eat nothing and avoid eating everything they find outside Dog muzzle guards are a humane way to inhibit biting, barking, chewing and other bad habits while keeping your dog clothed for maximum safety, comfort and protection Please measure the size: 3 sizes: S, M, L size S neck circumference: 36cm4​​​8cm, recommended for dogs of 9.5kg-13.5kg M neck circumference: 46cm56cm, recommended for dogs of 14.5kg-21.5kg L neck circumference: 55cm or more, recommended for dogs over 25kg The more humanized structure is different from the traditional dog mask, wearing a dog brace can provide enough breathing space for the dog's mouth, stick out the tongue, pant and drink water, the mouth does not hurt, suitable for French/English bulldogs, pugs, Boston, Shar Pei and other short-nosed dogs MORE COMFORTABLE FABRIC Made of breathable mesh and edge-soft fabric that prevents the mesh from rubbing against the eyes and nose. Durable nylon material, won't overheat, soft and breathable, no odor, no irritation, make the dog's mouth comfortable Adjustable shoulder strap Adjustable nylon strap and safety buckle can be adjusted according to the head size, it is not easy for dogs to remove it, suitable for daily outings, training, walking and other outdoor activities