M Dog Muzzle Mesh Short Nose French Bulldog Anti-Bite/Chew/Barking Muzzle for Bulldog Perfect Design: The design completely covers the dog's mouth to avoid biting, barking and licking, or eating dirty food outside. Suitable for daily outings, exercise, walking and other outdoor activities Breathable and Comfortable: Fully breathable mesh with delicate edges to prevent the mesh from rubbing the eyes and nose. Convenient for dogs to breathe freely, not overheated, easy to clean Adjustable Strap: The adjustable nylon strap is equipped with a quick release buckle, the safety buckle is not easy to fall off, and can be adjusted according to the size of the head Durable Material: Made of breathable mesh and durable nylon, skin-friendly, soft and breathable, odorless and non-irritating, making the dog's muzzle comfortable Suitable for small to large dogs: There are 4 sizes to choose from: XS, S, M, L. Neck circumference XS: 14.2-18.9 inches, recommended for dogs under 6-9 kg. Small neck circumference: 14.2-18.9 inches, recommended for dogs under 9.5-14 kg. Medium neck circumference: 18.9-22 inches, recommended for dogs under 14.5-21.5 kg. Large neck circumference: 22-25.6 inches, recommended for dogs over 22 kg.