Offers a high level of when working with aggressive dogs that bite or bark,Having trouble during vet or groomer visit? – Get this muzzle and solve the problem There are two size for choose, and can fit various dog with medium/ large dog, please choose the fit one following size ...Offers a high level of when working with aggressive dogs that bite or bark,Having trouble during vet or groomer visit? – Get this muzzle and solve the problem There are two size for choose, and can fit various dog with medium/ large dog, please choose the fit one following size. Muzzle has an adjustable leather strap with a quick-release buckle. Super Easy to Put On with Adjustable Strap,the adjustable strap makes it fits on large size dogs around their nose.