Comfortable and Breathable : This dog muzzle is made of nylon mesh breathable material. The fabric is soft and comfortable. After wearing it, your dogs can breathe freely without affecting breathing. It will bring a comfortable feeling to your dog. Adjustable : This dog mouth has a velcro design and an adjustable snap design, which can be adjusted according to the dog's mouth shape. It is suitable for merging with double-layer velcro and firmly fixed. Rugged and Durable reinforced nylon material, strong and durable buckle, multi-layer reinforced weaving process, double-layer velcro design, is a high-quality dog muzzle, can protect the dog when traveling safely. Safety Protection : The curved design suitable for the dog's mouth can safely and perfectly ensure that the muzzle can be firmly fixed in the mouth. The fixed lock and velcro can be easily worn on the dog without slipping, safe and reliable. Size Name:M (Pack of 1) | Colour Name:Black Details Material : Nylon Colour : Black Muzzle Size (Adjustable Range) S - Snout Circumference: 4.7-6in or 12-15 cm , Suitable For Pet Weight: 3.5- 8.0 lb M - Snout Circumference: 5.5-7.8in or 14-20cm, Suitable For Pet Weight: 5.5- 10.0 lb L- Snout Circumference:7-9.4in or 18-24 cm , Suitable For Pet Weight: 19.8- 27.5 lb XL-Snout Circumference:8.6-11in or 22-28 cm ,Suitable For Pet Weight: 28.6- 79.2 lb NOTE : Please measure the size of the dog's front mouth Circumference near the nose as shown in the pictureThen place an order according to the size chart. it is important to choose the right size product Measurement methods : Mouth Circumference : Please measure near the nose when measuring Mouth length : the length from the bottom of the dog's mouth to the neck PROMPT : The first time you wear it to a dog, the dog may feel uneasy. Before wearing it, you need your patience to induce the dog to give him some food or encourage it. After wearing it for many times, the dog will adapt.