INSTEN Size 1 Fabric Dog Muzzle, Black This muzzle is great for top handlers, trainers, and other professionals to work with strong, forceful dogs Features finished inner seams for extra support. Fully adjustable strap and quick-release buckle. Difficult for dogs to remove with their paws. Helps stop dogs from biting, barking, and chewing. Soft and comfortable to dogs Snout Measurement: 4.7-inch/ 11.94-cm. Top length: 1.7-inch/ 4.32-cm. Bottom length: 3.1-inch/ 7.87-cm. Material: Strong fabric nylon.