Adjustable Tightness: Small Dog Neck Circumference 7-12'' Measure the size of the pet, There are four sizes available for you to choose from S-XL fits most dogs and cats, With magic tape can be adjusted to a perfect size for your petPrevent Scratch&Bite: Inflatable collar can well-protect your pets from injuries, rashes, sutures, and post-surgery wounds. It will prevent pets from biting and licking their injured area or surgical site and promote recovery from surgery or woundsSoft Comfortable: Inflatable recovery collars & cones soft material for both cats and dogs after surgery, do not block pets vision move as usual, no causing any uncomfortableWashable &Easy Storage: Open the zipper to cleaning, washable short plush materialTips: It's a one-way air filling design, make sure to pinch the port before blow air