Made From A Unique, Easy-To-Clean Mesh Material. Best Fit Muzzles Are Lightweight, Breathable And Adjustable, Providing Total Comfort For Dogs. This Is A Temporary Muzzle To Inhibit Biting, Control While Grooming, Chewing And Barking, While Still Allowing Dogs To Pant . Size #8Xl 13.5 Inch Nose For Large Rottweiler, Large Mastiff And Other Giant Breeds.