Regarding this item, the neck diameter is 13cm, and the neck circumference is about 42~55cm, which is suitable for small dogs and medium-sized dogsAnti-scratch and anti-biteThe inflatable collar is designed to protect your pet from injuries, rashes and post-surgical wounds, prevent pets from biting and licking the injured or surgical site, and promote surgery or wound recoveryAdjustable StrapsThere is a Velcro strap at the opening of the collar, which allows you to adjust the tightness of the dog collar around the dog's neck to a perfect fit.Comfortable to wearThe inflatable inner and soft outer skin-friendly plush material are designed to make your dog comfortable to wear and won't block your pet's view. With this dog cone collar, your dog won't feel stressed or nervous and they can eat, drink, sleep and play normally. Reminder: Some dogs may feel uncomfortable using an inflatable collar for the first time and may try to kick it off with their hind legs, so we recommend clipping your pet's nails or putting on socksFriendly ReminderDue to the different breeds, body shapes and growing environments of dogs, our products may not be suitable for dogs with long noses, long legs, long tails and long bodies, such as Afghan Hounds, Dalmatians, Dalmatians, Dobermans Dogs, Great Danes, Greyhounds, Ibizan Hounds, Silkhounds, etc.EASY TO STORAGEInflatable recycling collar, can be deflated and stored in tight spaces when not in use, with a zipper opening on one side to take the bag out and wash the outer cloth