Ergonomic Freedog Ergo Plus Black Muzzle, size S, with a length of 25cm and a neck adjustment of 15mmx36/53cm. This muzzle is designed to prevent the dog from biting, while still allowing them to pant, drink, and receive treats comfortably. It is very lightweight, comfortable, and kind to the animal. It perfectly covers the dog's entire mouth, preventing them from biting, licking unwanted objects like rocks or stones, or chewing your car's leather seat.