Reflective Comfortable & Breathable FabricThe reflective function of the mouth cover improves the safety of the dog during night activities. The soft, breathable fabric and edges will maximize the comfort of your friend without hurting his handsome face while humanely preventing him from biting, barking, chewing, licking wounds and other bad habits. Adjustable and Easy to WearAdjustable neck strap help to keep the muzzle securely in place, make sure it's the right size and doesn't slide. And velcro can adjust the dog mask to the best degree depending on the shape of the dog's mouth. Breathe and Drink FreelyDifferent from the traditional dog mask, wearing this dog mouth collar, the pets are still free to breathe, gasp and drink. Perfect for Puppy & Medium or Large Long Snouted DogsPlease measure the size of your terriers before buying and we have provided measuring instructions for your reference. If you have any questions, you are always welcome to consult. Washable &High QualityThe muzzle is easy to clean, it supports to hand wash and machine wash. It is a great helper for families, travel, pet training, pet stores, vets, and veterinarians. We are committed to providing our customers with good quality products and the best shopping experience.