1.Breathable comfort: Soft mesh fabric does not hurt the dog's mouth, allowing the dog to breathe, drink, sleep and play normally. The mouth should be at least 6CM 2.High quality breathable mesh, double adjustable mouth and neck width, thick, soft, firm, easy to wear. The mesh part is coated with PE to improve the toughness, but there is a little smell which will disappear after several times cleaning or airing. 3.Wide adjustment range, good air permeability, extra-wide double reinforcement belt, easy to wear and install, not suitable for dropping 4.Use this product to effectively prevent bad habits such as barking , biting, picking and biting. Special reminder: especially suitable for dogs with long noses. Product size: M: suitable for mouth circumference 14 - 20 cm, head circumference: 24 - 30 cm, weight: 5 - 9 kg L: suitable for mouth circumference 18 - 24 cm, head circumference: head: 25 - 32 cm, weight 10 - 20kg XL: suitable for mouth circumference: 22 - 28 cm, head circumference: 31 - 41 cm, weight: 20 - 30 kg