[Adjustable] - Humanized adjustable size design with anti-scratch and release buckle (Must be used with the strap, the buckle is on the strap). Users can freely adjust the dog's muzzle length, easy to wear and install. [Safe & Reliable] - The dog muzzle is made of breathable polyester mesh material that protects pets from harm. Effective dog muzzles prevent barking, eating of unclean items, dog muzzles prevent biting, harming people or objects. [Does Not Affect Breathing] - The front opening does not affect breathing, the inner layer is thickened and padded to reduce friction, the muzzle is easy to clean, machine washable and line dry. [Does Not Affect Drinking Water] - When the dog wears a mask, the dog's mouth can still be slightly open, allowing the dog to drink water without pressure. Perfect for dogs with long snouts, not for French Bulldogs, Chihuahuas, Shih Tzus, or other breeds with short snouts. [Wide Use] - Various sizes for you to choose (M size is sent by default), you can leave a message if you need other sizes, suitable for all dog sizes from small to large. Ideal for aggressive and energetic dogs for safe handling during training, daily walks, vet visits, grooming, or dog travel. Tips: Measure your dog and refer to the size chart before purchasing.