Breathable mesh materialsThe nylon mesh dog mouth cover is made of nylon, duranle, wear-resistant, odorless, breathable, no damage to the skin, can be used for a long time, and the breathable mesh on the top of the muzzle can prevent slipping and breaking Adjustable strap design Just select the appropriate size according to the dog's mouth perimeter (the circle from the eye to the root of the mouth) , and adjust the lock to quickly wear it on your dog.The lock on the top of the dog muzzle can be adjusted according to the actual size of the dog More Thoughful UpgradeOur dog anti bark muzzle is specially designed to improve dog behavior. Full muzzle protection can effectively prevent the dog from barking and eating, while ensuring that the dog has enough space to breathe, pant or drink water Perfect for dogs long to muzzleBreathable nylon mesh dog muzzle is suitable for most dogs with long snouts such as golden retriever, labrador, malinois, scottish shepherd, alaska, giant poodle, afg dog Applicable SizeBlack mesh muzzle is easy to clean. Size Range: S: Muzzle Circumference: 8.26-9.45inch, Suggest Weight: 19.8-27.56lb;M: Muzzle Circumference: 9.84-11inch, Suggest Weight: 28.6 -38.5lb;L: Snout Circumference: 11.4-12.6inches, Suggest Weight: 39.7-63.9lbs