Specifications: Not only can the pet dog muzzles limit the dog's not good habit of chewing and biting furniture, but also prevent pets from biting people, eating garbage and barking at random.Dog muzzles can not only limit the dog's not good habit of chewing and biting furniture, but also prevent pets from biting people, eating garbage and barking at will.A dog muzzle can not only prevent dogs from chewing and biting furniture, but also a good way to limit dogs from biting and barking.Features: Featuring an unsealing design and adjustable buckle, the dog muzzles are breathable, will not make pets feel sultry when worn, the tightness can be adjusted at will, and is comfortable to wear.Our dog muzzles are with unsealing design and adjustable buckle, which are breathable, will not make pets feel sultry when worn, the tightness can be adjusted at will, making it cozy to wear.It is suitable for dogs with various mouth sizes.Size: S, Mouth Circumference: 12cm-25cm/4.7"-9.8", Neck Circumference: 11cm-29cm/4.3"-11.4" (Approx.) Size: M, Mouth Circumference: 15cm-28cm/5.9"-11", Neck Circumference: 13cm-33cm/5.1"-13" (Approx.) Size: L, Mouth Circumference: 18cm-30cm/7.1"-11.8", Neck Circumference: 16cm-36cm/6.3"-14.2" (Approx.) Size: XL, Mouth Circumference: 23cm-34cm/9.1"-13.4", Neck Circumference: 20cm-46cm/7.9"-18.1" (Approx.) Size: 2XL, Mouth Circumference: 28cm-38cm/11"-15", Neck Circumference: 22cm-56cm/8.7"-22" (Approx.)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.Package Includes: 1 x Dog Muzzle