Product features:Use breathable mesh material to protect pets from harmHumanized adjustable size design, with anti-scratch releaseSafe and reliable, effectively prevent dogs from barking, eating unclean objects, biting habits, hurting people or objects,Instructions for use:Use a soft ruler to measure the pet's mouth circumference (circumference in the middle of the mouth) without being too tight. You can put a finger in it, and choose the closest size muzzle according to the mouth circumference.Put the muzzle on the pet, adjust one side on the top, the mesh on the bottom, fasten the plastic buckle behind the pet's neck, and adjust it to a suitable length. When the strap is worn, it can't be adjusted too tightly, so that the pet can stretch. tongue outMaintenance:Wash the bar with a neutral detergent and then rinse with waterAvoid using in high temperature, low temperature and humid environmentCan not be disinfected with hot water, contact with gasoline, alcoholDo not let pets bite the muzzle, it will damage the muzzlePrecautions:Do not wear a muzzle for extended periods of time and unattendedDo not use the muzzle for the intended purpose of the petPay attention to the correct way of wearing to avoid hurting peopleCheck the appliance before wearing it, and stop using it if it is damagedThere will generally be discomfort before the first wearing, so don't force it. need to get used toStandard sizes:S is suitable for dogs with a mouth circumference of 12-15cmM is suitable for dogs with a mouth circumference of 14-20cmL is suitable for dogs with a mouth circumference of 18-24cmXL is suitable for dogs with a mouth circumference of 22-28cmXXL is suitable for dogs with a mouth circumference of 28-34cm