This inflatable recovery collar is made of good quality materials for the comfort of your pet while wearing it. The cone prevents pets from licking and biting wounds without blocking their view and hindering their normal activities. HOW TO USE? 1.Blow into the air valve until 80% full and close the valve. 2.Loop to insert the cone to secure it in place. 3.Put the cone on your pet’s neck and adjust the strap according to his/her neck circumference. SIZE DETAILS: Size S: Neck Circumference: 6” up to 8” Size M: Neck Circumference: 8” up to 14” Size L: Neck Circumference: 14” up to 18” Size XL: Neck Circumference: 18” up to 24”