Product DescriptionMaterial: PU LeatherColor: BlackS: Front mouth circumference 14-18cm, back mouth circumference 18-22cm, back head circumference 21-33cm, suitable for weight 8-25kgM: Front mouth circumference 19-22cm, back mouth circumference 23-27cm, back head circumference 24-35cm, and weight 20-50kg.L: Front mouth circumference 23-26cm, back mouth circumference 29-33cm, suitable for weight 8-25kg 33cm, the back of the head is 31-40cm and the suitable weight is 45-75kg.Package Contents: 1 * Anti-bite and anti-dog leather mouth cover1. [Material] - Made from high quality leather, durable and sturdy, skin-friendly for dogs. Mesh design, good ventilation. The metal rivet keeps the muzzle in place for secure comfort for your pet.2. [Breathable] - Air holes design, it is breathable when putting on. It also allows the dog to eat enough to open its mouth and avoid further chewing.3. [Adjustable] - It is not only suitable for the side strap as well as the the bottom adjustable strap under the mouth. It has a quick release buckle, a leather strap at the back easily clips onto the leash.4. [Useful] - Helps to make the dog bite to stop - around the dog's barking and mouth. Protect your children when they stay with dogs, you can protect your dog from food at a later date on the street.