Masterpet adjustable soft nylon muzzle. Strong construction, yet soft and flexible Fully adjustable, easy to use Stops dogs biting, chewing and barking Allows drinking and panting Not easily dislodged by the dog For giant breeds: Newfoundlands, Great Danes, Bull Mastiffs, St Bernards, Rottweilers, Irish Wolfhounds etc Ensure you have the correct size muzzle, and do not leave your muzzled dog unattended. Muzzling is for restraint, not punishment.