Please measure your dogs snout and neck to ensure correct fit. Measuring for the right size Muzzle take a tape measure lay it around your dogs nose just above the nostrils (wet bit) Place your forefinger under the tape measure to ensure enough space for your dog to be comfortable, dont tighten it, check size on tape measure. This is a Large Size. Snout strap: 7.1 - 11.9 Inches (18 - 30 cm) Neck strap: 6.3 - 11.0 Inches (16 - 28 cm) Black colour. Fitting Fit the selected muzzle on the dog, check the fit by running your fore finger inside the noseband. Your dog must be able to pant and have suitable tongue movement This nylon muzzle loop has an extra soft cushion lining. The strap is adjustable and has a spring catch for quick fit. The muzzle loop inhibits biting but allows panting and drinking and so isnt over restricting on your dogs jaw, adding comfort as well as safety. D-Ring underneath muzzle loop serves as support