Soft Genuine Leather Dog Basket Muzzle #109 Brown - Boxer, Bulldog (Circumference 13", Snout Length 3.5") Well-ventilated, light and durable. This size generally most suitable for Boxer, English Bulldog Well-fitting, comfortable muzzle is made of high quality genuine leather, riveted for extra strength. Dog snout measurements: circumference 13", length - 3.5". Adjustable leather straps wouldn't stratch.