Check the listing for details. Kwik Klip Nylon Muzzle for dogs variable size options small to large dogs. Condition: New. Listed at 9.99 USD. These Kwik Klip Nylone Muzzles by Omnipet are available in multiple sizes. Per the package these muzzles...*Are comfortable, wont pinch skin or pull hair.*Kwik klip buckle allows easy placement.*Reinforced nylon with strong nylon thread.*Adjustable for a perfect fit.*Machine washable. Sizing for these muzzles are as follows per packaging. Size 0 Circumference of muzzle 4 inches. Fits yorkie, minature poodle (under 8 lbs)Size 1 Circumference of muzzle 4.25 inches. Fits westie, fox terrier (9-25 lbs)Size 2 Circumference of muzzle 6 inches. Fits beagle, cocker spaniel (25-50 lbs)Size 3 Circumference of muzzle 7 inches. Fits german shepherd, labrador (50-80 lbs)Size 4 Circumference of muzzle 9 inches. Fits great dane, saint bernard (over 80 lbs)