4# suitable neck circumference 10.23'-12.2'(26-31cm) Width 5.1'(13cm) Please give pet measure neck circumference size, select the corresponding size. Using lightweight polystyrene plastic soft, safe, secure, modern design. Using flannel edging, the body will not hurt pets, interface with male and female sticky cloth, easy to use, you can adjust the collar length. Can be avoided in the dermatology Pet / Beauty / surgical procedure bite others, and to prevent licking bite mouth surgery wound healing process itchy pet safety protection. Strength, Comfort and Safety all in one Muzzle. Helps stop biting, chewing and barking! Prevents your dog from biting, barking and chewing things, great to prevent your pampered ones from chewing furnitures.