More functional design: With this muzzle they can sniff everything but eat nothing, avoid eating everything they find outside. The dog muzzle guard is a humane way to curb biting, barking, chewing, and other bad habits while keeping your dog dressed for maximum safety, maximum comfort, and maximum protection. Please measure the size: 2 sizes: S, M. Size S Neck circumference: 36 cm 48 cm, recommended for dogs between 9.5-14 kg. Size M Neck circumference: 46 cm 56 cm, recommended for dogs from 14.5 to 21 kg. More humanized structure Different from the traditional dog mask, by wearing the dog mouth guard, you can provide enough space for your dog’s mouth to breathe, stick out his tongue, pant and drink, no pain in the mouth. mouth, suitable for French/English Bulldog, Pug, Boston SharPei and other comfortable short snout dogore fabrics Made from breathable mesh and soft fabrics around edges, prevents mesh from rubbing on eyes and nose. Durable nylon material, no overheating, soft