This Size S Dog Mask can be used on dogs for stopping/reducing barking, chewing and biting.Pet Dog Muzzle features sharp red color for style.Size S(girth): 12-15cm( 4.72"-5.9")Weight: 34.8gclosure around snout and adjustable back strap for securing theDog Anti-Bark MaskMuzzle.While your dog can still drink while using the mask, this Pet Mask is highly recommended for visits to groomer and vets.To measure snout girth, place measurement near your dog's nose and wrap around the snout.If measurements fall in between two different sizes, please order the bigger size for growing space/comfort.Package Contains: 1 x Mesh Dog MuzzleNote:Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.