Great muzzle we live in rural Australia, we muzzle our shepherd every time we walk sections of our property incase we meet trespassers plus the dog will chase the cattle,so far the muzzle has saved his life twice once when he encountered a deadly brown snake which struck him in the face but could not go pass the mesh another time when he got kicked in the face by one of the cattle ,the muzzle saved him,only slightly bent it such is the strength of the design ,any one living in a snake area give this muzzle some consideration, your dog can pant freely (important in our weather conditions) and not be to restricted by this product