This pet dog muzzle is well-made of stainless steel and pu material, which is breathable for your pet and comfortable to wear. It can not only effectively protect your dog from barking or biting things casually, but also protect your children when they are staying and playing with dogs. It will not affect your dog daily activities, with adjustable design, easy to wear. Features -Color:Black -Material:Stainless steel -Size: 13.50X11.00X10.50cm/5.31X4.32X4.13in -Mouth length: 8.5 cm -Mouth circumference: 23 cm -Head circumference: 30.5 cm -Comfortable Design: The design of this dog muzzle does not hinder your pet's vision, and the tongue can be completely extended to dissipate heat -Excellent Workmanship: The excellent workmanship of our product will bring you a , so not worry that it will make the dog feel too tight -Adjustable and Convenient: Adjustable, can your dog will not feel discomfort and they can drink. The muzzle is easy to , easy to put on and take off, that can offer a big convenience for you -Essential for Your Dog: A must-have for your loved dog to help stop biting, barking, and chewing, is very necessary for you to have one Package list: 1 muzzle cover