SIZE: Four different sizes available, please measure your dog's snout and choose the right size for your dog. XS (Suitable for neck size 28-38cm/11.0-14.9inch, age 4-7 months, weight 13.2-19.8lb) S (Suitable for neck size 36-48cm/14.2-18.9inch, age 8-12 months, weight 20.9-29.8lb) M (Suitable for neck size 48-56cm/18.1-22.0inch, adult dog, weight 31.9-47.4lb) L (Suitable for neck size over 56cm/over 22.0inch, adult dog, weight over 49.7lb). Material: Our dog muzzle is made from breathable mesh and durable nylon construction, lightweight, practical and durable. It has no odor, and the edge fabric is soft and wear-resistant, making the dog's snout comfortable. Humanized Design: Our short snout muzzle with eyehole structure does not hinder your pet's vision, ensuring maximum visibility. Soft edge can protect eyes and nose from being rubbed. Adjustable: Designed with adjustable buckle and quick release buckle, convenient and easy to use. Effectively prevents dogs from biting, excessive barking, chewing, and eating indiscriminately. Usage: Fits French bulldog, Pug, Boston terrier, Boxer, Chihuahua, Shih Tzu, Pekingese, Shar Pei, and other short snout dogs.