A. The dog muzzle can limit the dog's habit of chewing and biting furniture, prevent pets from biting people, eating garbage and barking at random. B. This dog muzzle adopts a mesh design, which has good air permeability and won't make pets feel stuffy when wearing it. It has an adjustable neck strap, the tightness can be adjusted at will, and it is comfortable to wear. C. It is constructed of rubber material. D. There are 6 different sizes for you to choose from. E. Dog muzzle is suitable for dogs, puppies and other small animals. F. Item Name: Dog Muzzles G. Material: Rubber H. Features: Adjustable, Breathable, Tear-resistant, Comfortable I. Size Details: XS, Head Circumference: 30cm-40cm/11.81"-15.75" (Approx.) S, Head Circumference: 34cm-48cm/13.39"-18.9" (Approx.) M, Head Circumference: 39cm-51cm/15.35"-20.08" (Approx.) L, Head Circumference: 45cm-59cm/17.72"-23.23" (Approx.) XL, Head Circumference: 47cm-61cm/18.5"-24.02" (Approx.) 2XL, Head Circumference: 51cm-72cm/20.08"-28.35" (Approx.) J. Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. K. Package Includes: 1 x Dog Muzzles