Dog Muzzle Buckle Design Breathable High Elasticity Puppy Muzzle Pet Face Protector for Small Dogs . Description: With unsealing design and adjustable buckle, the dog muzzles are breathable, will not make pets feel sultry when worn and is comfortable to wear, the tightness can be adjusted at will. It can not only limit your dog's not good habit of chewing and biting furniture, but also prevent your pet from biting people, eating garbage at will and barking. Made of high-quality nylon material, the pet muzzles are eco-friendly, sturdy and durable, and will not hurt the pet's mouth. There are five different sizes to choose from: S, M, L, XL, 2XL. It is suitable for dogs with various mouth sizes. Item Name: Dog Muzzle Material: Nylon Features: Reusable, Anti-Bite, Breathable Size Details: 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