Size M (Pack of 1) 14-20CM Material Nylon Dog Breed Recommendation Closure Type Buckle Target Species Dog About this item Comfortable and Breathable: The HEELE Dog Mouth is made of high quality soft breathable mesh and durable nylon. There is extra soft padding inside the muzzle to provide maximum comfort for your pet. Minimize strain and harm to dog. Safe and Reliable: This dog mouth cover can limit your dog's bad habits such as biting, barking and chewing. Also allows your dog's mouth to breathe and drink water. It is very suitable for travel, safe socialization, safe treatment and beauty during veterinary visits. Easy to Wear: The combination of an elastic velcro and a buckle quick release makes the dog muzzle easy to put on or take off. Easy to clean and portable storage. Adjustable Size: Depending on the shape of the dog's mouth, the velcro and muzzle strap can be adjusted to ensure it is snug enough not to bark and allow free panting and yawning. Make your dog feel comfortable wearing the muzzle for a long time. Note: If your dog has never worn a muzzle before, please familiarize them with the muzzle first. If you have any problems finding the correct size or the items received, please do not hesitate to contact us. We will work hard to resolve your issue.