Description: 【Adjustable】Humanized adjustable size design, users can adjust the dog muzzle length freely, which is easy to wear and install. 【 and reliable】Dog muzzle made of flexible TPR material, effectively dog muzzle to prevent chewing, eating unclean objects, dog muzzles to prevent biting, and hurting people or objects. 【Does not affect breathing】The front opening does not affect breathing, and the inner layer is thickened and cushioned to friction. 【Does not affect drinking water】The dog's mouth can still be slightly opened and not tight, so that the dog can drink water without pressure. 【Wide range of applications】Suitable for all dogs sizes from small to large. Ideal for can effectively prevent bad habits such as , biting, picking, and biting things, to use during training, daily walk, grooming, or dog travel. Specification: Material: TPR Size Chart: S: 9cm/3.54inch, mouth circumference 12cm/4.72inch, neck circumference 12cm-27cm/4.72inch-10.63inch M: 11cm/4.33inch, mouth circumference 15cm/5.91inch, neck circumference 15cm-33cm/5.91inch-12.99inch L: 13cm/5.12inch,mouth circumference 17cm/6.69inch,neck circumference 16cm-35cm/6.30inch-13.78inch Package Includes: 1 Dog Muzzle(4 Pack) Note: Please allow slightly errors due to manual measurement and different monitors.