Specifications: Made of premium polyester and nylon, this dog mesh muzzle is breathable and durable. This dog muzzle is adjustable to fit your pet's mouth better. With this dog, you can effectively prevent dogs from biting, messy barking, chewing and eating indiscriminately. It is suitable for flat short snout dogs. Item Name: Dog Muzzle Material: Polyester, Nylon Features: Adjustable, Breathable, Anti-barking Size Details: [Our Size XXS] Neck Circumference: 19cm-29cm/7.5"-11.4", Recommended Weight: 2kg-5.5kg (Approx.) [Our Size XS] Neck Circumference: 28cm-38cm/11.0"-15.0", Recommended Weight: 6.0kg-9.0kg (Approx.) [Our Size S] Neck Circumference: 36cm-48cm/14.2"-18.9", Recommended Weight: 9.5kg-13.5kg (Approx.) [Our Size M] Neck Circumference: 46cm-56cm/18.1"-22.1", Recommended Weight: 14.5kg-21.5kg (Approx.) [Our Size L] Neck Circumference: Above 55cm/21.7", Recommended Weight: Above 22.5kg (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Dog Muzzle [Tongue Out Design] Compared with the traditional short snout dog muzzles, the mouth part of our frenchie muzzle has a net bag design that can let your dog's tongue out. At the same time, it prevents your dog's snout from being accidentally exposed and accidental eating, biting, chewing, and licking wounds. But it will not restrict your dog's daily behaviors such as panting, drinking, and feeding. [Breathable Mesh Dog Muzzle] Made of skin-friendly breathable mesh and sturdy nylon, the wide eye-hole design and soft edges are more comfortable for your bulldog, which can protect your dog's eyes and nose from friction. Ideal for flat-faced dogs who are biting people when seeing a veterinarian or grooming. [Adjustable Strap] With Adjustable nylon strap and quick-release buckle, our anti biting breathable muzzle is convenient and easy to use. The anti-scratch design makes the muzzle stay firm and not easy to fall off. [Applicable flat faced Breeds] This mesh muzzle is suitable for short snout dogs such as French Bulldogs, English Bulldogs, American Bulldogs, Pugs, Shih Tzu, Boston Terriers, Pekingese, Bully, Tibetan Spaniels and other flat faced dogs terriers. [Size S Bulldog Muzzle] Size S is suitable for head circumference 15.0-17.5''. Please measure your dog's head circumference before buying. If you cannot choose the size or have any questions about this muzzle, please feel free to contact us, we are happy to solve the problem for you.