Baskerville Ultra Dog Muzzle Size 6, Black, Muzzle Suitable for Mastiff, German Shepherd.... The patented Baskerville Ultra was designed by Dr Roger Mugford to protect against bites but at the same time be comfortable for the dog. The ergonomically designed safety strapping ensures the muzzle will always remain securely in place and features two additional points of secure attachment. The loop at the bottom is designed to attach to your dogs regular collar and there is an optional, removable over-head safety strap. The Ultra Muzzle also has a secure metal buckle with pre-holed webbing, to ensure it is fully adjustable, quick and easy to fit. It is also 'treat friendly' allowing you to reward your dog whilst wearing it, essential during behaviour modification programmes. suitable for: Bull Mastiff, German Shepherd, Irish Wolfhound, Japanese Akita, Mastiff, Newfoundland, Pyrenean, MD Rottweiler, Schnauzer Giant, St Bernard